Vulnerabilities & Exploits
Cybersecurity news in this category
Telegram Patches RCE Vulnerabilities in HTML Widgets After Researcher Demonstrates Calculator Exploit
Telegram Patches Critical QuickJS Sandbox Escape Vulnerability in Android Update 13.2.2
Node.js Patches 16 Vulnerabilities Exposing TLS Private Keys and Cross-Connection Data
Microsoft Confirms November Windows Updates Break Activation, Licensing and Printing Functions
Microsoft has acknowledged that its November 2024 cumulative updates are causing failures in Windows activation and licensing operations on multiple supported platforms. The Software Licensing Management Tool (SLMGR) returns error 0x80041008 when administrators run commands such as slmgr.vbs /skms-domain or slmgr.vbs /ipk, preventing product activation, KMS server configuration, and product key changes. The issue affects Windows 11 23H2, Windows 10 22H2, Windows 10 21H2, Windows Server 2025, Windows Server 2022, and Windows Server 2019. A separate regression introduced by the same updates prevents printing of documents that contain images with zero height or width, a technique used for watermarks in Microsoft Word and other applications. Microsoft stated that a fix will be released in the coming days and advised enterprise customers needing an immediate workaround to contact business support.
Fortinet Discloses Multiple Critical Vulnerabilities in FortiMail, All Addressed in October Update
Fortinet has published 24 security advisories detailing 27 vulnerabilities affecting its FortiMail email security product. Eight of the flaws received the highest severity rating of Critical, with three carrying a CVSSv3.1 base score of 9.8. The affected issues include path traversal CVE-2026-126147, command injection CVE-2026-126148, and SQL injection CVE-2026-126263, each capable of enabling arbitrary code execution. An additional unauthenticated SQL injection vulnerability tracked as CVE-2026-126164 scored 9.4, while four more flaws were rated 9.1. All issues were resolved in the October security update released by the vendor prior to the November 10 disclosure. No exploitation of the vulnerabilities has been observed in the wild at the time of advisory publication.
Cloud Software Group Patches 28 Vulnerabilities in Citrix NetScaler ADC and Gateway
Cloud Software Group has released security updates for Citrix NetScaler ADC and Citrix NetScaler Gateway to address multiple critical vulnerabilities. The company also disclosed a critical flaw in Citrix NetScaler Console. A total of 28 vulnerabilities were identified across the products, with several receiving CVSS v4.0 base scores as high as 9.5. The most severe issue, CVE-2026-107412, involves memory overflows affecting gateway and AAA virtual servers. Eight additional flaws, including CVE-2026-120868, scored 9.3 and impact standard packet processing. Other affected areas include ICA proxy handling, VPN endpoints, mail OTP authentication, and DNS components.
Apache Releases HTTP Server 2.4.71 Fixing Critical mod_http2 RCE Flaw CVE-2026-119618
Apache HTTP Server developers have issued version 2.4.71 containing a patch for the critical vulnerability CVE-2026-119618 located in the mod_http2 module. The flaw stems from a race condition in the assign_headers() function that allows multiple threads to access shared data without proper synchronization, leading to memory corruption and potential remote code execution. Affected versions range from 2.4.55 to 2.4.70, along with standalone mod_h2 builds from 2.0.8 to 2.0.42. Red Hat assigned the issue a CVSS score of 9.8 and confirmed that a reliable exploit has already been demonstrated in public research, although the published GitHub proof-of-concept currently only triggers memory corruption and process crashes. The vulnerability impacts only servers with HTTP/2 enabled; configurations limited to HTTP/1.1 remain unaffected. Administrators are advised to update immediately or temporarily disable HTTP/2 if patching is not feasible. The same release also resolves two additional issues: CVE-2026-106023 in mod_md and the lower-severity CVE-2026-109163 in mod_vhost_alias.
Microsoft Patches Two BitLocker Vulnerabilities Allowing Encryption Bypass via Physical Access
Microsoft released fixes on November 10, 2026, for two BitLocker vulnerabilities that enable attackers with physical access to bypass disk encryption on Windows systems. CVE-2026-119832 carries a CVSS score of 5.9 and stems from an improperly applied access control, allowing low-privileged local users to read protected data from the system drive without user interaction. CVE-2026-97015 scores 6.8 and involves a buffer overflow in dynamically allocated memory, requiring no prior privileges and classified as low attack complexity. Both flaws affect Windows 10 versions 1809, 21H2 and 22H2, multiple Windows 11 releases, and Windows Server 2019, 2022 and 2025 editions across various processor platforms. The issues directly undermine BitLocker's core purpose of protecting lost, stolen or improperly decommissioned devices. Corresponding updates include KB5131096 for Windows 10 21H2/22H2 and KB5131087 for Windows 11 23H2, with administrators advised to verify coverage for CVE-2026-97015 separately.
Qlik Sense Servers Targeted with Reverse Shell Attacks in October 2026 Campaign
In October 2026, multiple Qlik Sense servers hosted by European Union customers were subjected to attempted reverse shell installations within a three-minute window. The attacks were blocked before execution and originated from a single-line PowerShell command delivered through the Qlik Sense scheduling component. Analysts noted strong similarities to a November 2023 campaign attributed to CACTUS ransomware operators that exploited three specific vulnerabilities: CVE-2023-41265, CVE-2023-41266, and CVE-2023-48365. The observed activity included a Go-based second-stage payload that searched for Apache ActiveMQ processes, harvested local account hashes on Linux, and deployed modified OpenSSH servers for persistence. Infrastructure recovered during the investigation also contained exploits for a 2023 Apache ActiveMQ vulnerability and a 2024 Veeam Backup and Replication flaw, indicating broader targeting intentions. The root vulnerability exploited in the 2026 attempts remains unidentified.
Ivanti Patches 13 Vulnerabilities in Five Products, Including Two Critical Flaws
Ivanti has issued security updates for five enterprise products to address a total of 13 vulnerabilities, two of which carry a critical severity rating. The affected products include Ivanti Endpoint Manager, Ivanti Cloud Services Application, Ivanti Sentry, Ivanti Endpoint Manager Mobile, and Ivanti User Workspace Manager. The most severe issues allow unauthenticated remote code execution and unauthorized certificate manipulation. One critical flaw, CVE-2026-121653, affects the Core component of Ivanti EPM and scores 9.8 on CVSS v3.0. A second critical vulnerability, CVE-2026-121683, impacts Ivanti CSA version 5.0.8 and enables arbitrary addition or deletion of certificate registration data. The remaining vulnerabilities are rated high and affect multiple other Ivanti solutions.
Google Issues Second Chrome Update This Week, Patching 83 Vulnerabilities Including Five Critical Flaws
Google has released a new security update for its Chrome browser, marking the second release within the same week. The update addresses a total of 83 vulnerabilities across Windows, macOS, and Linux platforms. Five of these issues are rated Critical and involve Use After Free memory errors in key components such as ServiceWorker, CSS, Layout, Skia, and Accessibility. The previous update from November 9 fixed nine vulnerabilities, one of which (CVE-2026-125350) had already been observed in active exploitation. No evidence of in-the-wild exploitation has been reported for the latest set of fixes. The new versions are Chrome 157.0.8103.79 for Windows and macOS and 157.0.8103.78 for all three operating systems.
Mozilla Releases Firefox 160 Fixing 99 Vulnerabilities Including Multiple High-Severity Issues
Mozilla Foundation has published Firefox 160 along with its extended support release, addressing a total of 99 vulnerabilities. Although no Critical-rated flaws were present, 57 vulnerabilities received a High severity rating. Among the notable issues is a Use-After-Free flaw in CanvasWebGL (CVE-2026-124907) that could enable privilege escalation and sandbox bypass. A separate Use-After-Free vulnerability tied to inter-process communication (CVE-2026-124903) also carries the risk of sandbox escape. Additional patches resolve Same-Origin Policy bypasses tracked as CVE-2026-124874 and CVE-2026-124902, along with numerous other security problems across the browser.
Dart and Flutter SDKs Patch Critical TLS Flaw Tied to Compromised eMudhra Certificates
Dart and Flutter teams released updates to block compromised intermediate certificates from the eMudhra certificate authority. The flaw affects applications built for Android, Windows, and Linux that rely on dart:io for HTTPS connections. Stable releases include Dart 3.13.7 and Flutter 3.47.8, while beta channels received Dart 3.14.0-315.3.beta and Flutter 3.50.0-0.2.pre. The root cause traces to insufficient randomness during key generation for eight eMudhra intermediate CAs disclosed in October 2026. Because dart:io uses its own BoringSSL implementation rather than system revocation lists, applications must be rebuilt and redistributed to users. Additional changes improve root certificate handling on Android 14 and later via Conscrypt APEX modules.
Vulnerability Management Evolution: From Manual Scans to Continuous Threat Exposure Management
This final installment of the Vulnerability Management for Beginners series examines how the discipline has transformed over recent years into an essential component of organizational risk management. The article highlights the dramatic increase in disclosed vulnerabilities, now approaching 48,000 per year, and stresses that fewer than one percent pose real-world risk. It details the shift toward automated asset inventory integrated with SIEM, EDR, and CMDB systems, alongside multi-factor prioritization combining CVSS, EPSS, KEV lists, and FSTEC methodologies. New practices such as EASM, automated penetration testing, BAS, and CTEM are presented as extensions of a mature foundational process rather than replacements. The piece also covers regulatory tightening in Russia through FSTEC Order No. 117, mandatory remediation timelines, and the impact of AI on both defense and attack surfaces. It concludes with a practical Monday-morning action list focused on asset counting, threat feed integration, SLA definition, and cross-team coordination between IT and security.
Fortinet Discloses Eight FortiOS Vulnerabilities Including Three Critical Flaws
Fortinet has published security advisories detailing eight vulnerabilities affecting its FortiOS operating system used in UTM appliances. Three of the issues received the highest severity rating of Critical. CVE-2026-126259 allows unauthenticated command execution with super-admin privileges in FGSP combined with configuration synchronization or auto-scale setups via crafted HA packets. CVE-2026-126254 stems from integer truncation in the BGP daemon and can propagate malicious attributes from configured iBGP peers. CVE-2026-126253 enables authentication bypass in the OSPF daemon, permitting unauthenticated LSA injection. The remaining five vulnerabilities were assigned lower severity ratings. Administrators are urged to apply the available patches promptly.
Microsoft Patches Over 1,000 Vulnerabilities in November 2026 Patch Tuesday Release
Microsoft has issued its November 2026 monthly security updates, addressing a total of 1,093 vulnerabilities across Windows, Office, Azure, SQL Server, SharePoint Server, Exchange Server, and Developer Tools. The update also covers a vulnerability in the third-party Tencent RapidJSON library identified as CVE-2026-124586. Among the fixes, 63 vulnerabilities received the highest severity rating of Critical, while 1,029 were rated Important. Privilege escalation issues accounted for the largest share with 535 cases, followed by 296 remote code execution flaws. Several vulnerabilities have already been confirmed as exploited in the wild. The release follows the standard Patch Tuesday schedule on the second Tuesday of the month.
What Every Programmer Should Know About Stack Buffer Overflows on Windows
The article provides a practical, step-by-step guide to understanding stack buffer overflow attacks under Windows, using the unsafe scanf function as the primary example. It explains how unlimited input can overwrite adjacent memory structures, including return addresses stored on the stack. Detailed coverage of process memory layout, assembly instructions, the RIP register, stack frames, and calling conventions shows exactly how control flow can be hijacked. The tutorial demonstrates live debugging with WinDbg, showing how input can corrupt the return address and trigger crashes. It also covers modern compiler protections such as MSVC stack canaries that detect overwrites before they allow exploitation. The piece emphasizes why developers must validate buffer sizes and how these classic vulnerabilities remain relevant despite defensive mechanisms.
Critical and High-Severity Privilege Escalation Flaws Patched in Zoom Workplace for Windows
Zoom has disclosed two vulnerabilities affecting its Windows version of Zoom Workplace that could allow unauthenticated attackers to escalate privileges over the network. CVE-2026-108186 received a CVSS v3.1 base score of 9.6 and is rated Critical due to improper input validation. CVE-2026-108187 carries a CVSS score of 8.1 and is rated High because of an origin validation issue. Both flaws were addressed in security updates released by the vendor. Organizations are urged to apply the latest patches immediately to eliminate the risk of remote exploitation without authentication.
Pentester Shares Experience Mistaking HTTP 500 Response for Remote Code Execution on Live React and Node.js Application
A security researcher published an account of their first real-world penetration test on a live website built with ReactJS and Node.js. On the fourth day of testing, the author encountered an HTTP 500 error that initially appeared consistent with a successful remote code execution attempt. The article describes the researcher's process of investigating the response and realizing the error was unrelated to code execution. The post highlights common pitfalls when interpreting server responses during active assessments. It also notes the use of standard web technologies and the researcher's intent to share lessons from the engagement. The publication is presented as a case study from the Habr platform.
Apple Patches iMessage Group Chat Flaws Allowing Remote Attackers to Join Conversations
Apple has released security updates addressing multiple vulnerabilities that could allow unauthorized access to iMessage group chats. The fixes cover two specific issues tracked as CVE-2026-113961 and CVE-2026-113960, both discovered by an anonymous researcher. One flaw stemmed from insufficient authorization checks, while the second involved vulnerable code that could expose prior messages to new participants. Patches are included in iOS and iPadOS 27.2.1 as well as version 26.7.3. Additional fixes address Bluetooth pairing bypasses, AirPlay restrictions, and a memory corruption issue in the Brotli compression library. Apple has not confirmed any in-the-wild exploitation of these bugs.
Google Patches Eighth Chrome Zero-Day of 2026: CVE-2026-125350 Use-After-Free Exploited in the Wild
Google has released a new Chrome update that addresses a zero-day vulnerability already being exploited in real-world attacks. This marks the eighth such actively exploited 0-day fixed by the company since the beginning of 2026. The flaw, tracked as CVE-2026-125350, is a use-after-free error in the XML processing component that can lead to memory corruption and arbitrary code execution. An anonymous researcher reported the issue on November 6, and Google confirmed the existence of a working exploit without disclosing details about the attackers or targets. The update also resolves eight additional vulnerabilities across components including V8, WebGL, GPU, and the file system. Stable channel patches are now available for Windows, macOS, and Linux, with rollout expected to take several days to weeks.
Top 5 Cybersecurity Events of the Week: Barracuda Root Exploits, cPGuard Supply-Chain Attack, APT Flaw, Xen Escape Bugs, and OpenSSH Authentication Bypass
This weekโs Jet CSIRT roundup highlights five critical security issues affecting widely deployed infrastructure. Two high-severity vulnerabilities in Barracuda Email Security Gateway and other appliances allow unauthenticated attackers to obtain root access via authorization bypass and command injection. A supply-chain compromise of cPGuard versions 5.88.12โ5.88.19 enabled theft of password hashes, database files, and SSH keys from at least 32 customer servers before the malicious update was removed. A flaw in the APT package manager (CVE-2026-109518) lets network attackers substitute malicious packages that execute with root privileges on Debian and Ubuntu systems. Two Xen hypervisor bugs (CVE-2026-102703 and CVE-2026-102704) permit a compromised guest VM to read and write memory belonging to dom0 and other guests. Finally, an OpenSSH authentication bypass on musl-based Alpine Linux distributions allows passwordless login to key-only accounts when long password hashes trigger a crypt() return value of โ*โ.
CISA and FBI Warn of Global Cyber Attacks on Industrial Refrigeration and Cold Chain Controllers
CISA, the FBI, and multiple U.S. agencies issued a joint advisory on November 5 detailing malicious cyber activity targeting industrial refrigeration systems and cold chain monitoring equipment worldwide. Attackers are exploiting unpatched or internet-exposed temperature controllers in supermarkets and cold storage facilities through authentication bypass, arbitrary code injection, and weak configurations. Once inside the control panels, threat actors force units into continuous heating and defrost cycles, the opposite of their intended function, while also causing denial of visibility that prevents operators from seeing real equipment status. The advisory highlights risks including reduced system lifespan, fire hazards, stock loss, and potential consumer harm from spoiled products stored outside safe temperature ranges. Sectors most affected include public health, chemical manufacturing, food and agriculture, and refrigerated transportation. Recommended mitigations focus on network segmentation, removal of remote access from the public internet, strong authentication, firmware updates, and regular offline backups.
Critical Flaw in React Server Components Enables Unauthenticated Remote Code Execution
The React team disclosed security advisory GHSA-xqc2-xf4c-x3h3 describing a high-impact vulnerability in React Server Components that can lead to remote code execution. The flaw affects packages react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack across multiple version ranges from 19.0.0 through 19.3.0. Exploitation requires no authentication, privileges, or user interaction, allowing a remote attacker to execute code on the server by sending a specially crafted request containing multiple typed arrays alongside attacker-controlled data. No CVE identifier was assigned, and the advisory notes that the issue is distinct from the previously reported React2Shell vulnerability tracked as CVE-2025-55182. Affected applications are limited to those running React code on the server with supported frameworks and bundlers; client-only React usage is unaffected. Patches are available in versions 19.0.9, 19.1.10, 19.2.9, and 19.3.1, with immediate updates strongly recommended. The React team also linked similar typed-array handling issues in Next.js Cache Components, suggesting a broader class of errors.
Plex Media Server Vulnerabilities Exploited in Wild via Plex2Shell Chain
Plex has disclosed active exploitation of four vulnerabilities in Plex Media Server versions 1.43.2 and earlier. The flaws, tracked as CVE-2026-96652, CVE-2026-96654, CVE-2026-96655 and CVE-2026-96656, allow unauthenticated remote code execution when chained together. Attackers are leveraging server-side request forgery and token-handling weaknesses to write arbitrary files on exposed servers. Proof-of-concept code named Plex2Shell was published on 16 October, after which CISA added the issues to its Known Exploited Vulnerabilities catalog. Compromised systems have been observed deploying cryptocurrency miners and proxy relays. The software is widely used both as a standalone media server and as an add-on for QNAP and other NAS devices, increasing the potential attack surface.
Google Issues Chrome Security Update Fixing Nine Vulnerabilities Including Zero-Day Exploit
Google has released a security update for its Chrome browser that addresses nine vulnerabilities, one of which is a zero-day flaw already being exploited in the wild. The update covers Windows, macOS, and Linux platforms with versions 157.0.8103.51 and 157.0.8103.50. Seven of the issues are rated High severity, while two are rated Medium. The zero-day vulnerability CVE-2026-125350 is a Use After Free flaw in XML processing that was reported on November 6. Additional fixes address similar Use After Free issues, type confusion in the V8 engine, out-of-bounds writes in GPU, and problems in WebGL, FileSystem, and Compositing components.
Security Week 2646: Researchers Uncover Car Control Flaws via ForgeRock Portal
Security researchers Sam Curry and Shubham Sha identified a critical vulnerability in the web applications of two major automakers that could allow complete remote takeover of vehicles. The flaw stemmed from misconfigured ForgeRock access management software, including an exposed admin:admin default credential on one component. Attackers could bypass restrictions on dangerous commands and hijack user accounts to access geolocation data, unlock doors, and start engines without needing a VIN number. The chain granted administrative access to all vehicles using the affected identification system. The issue was reported in early 2026 and fixed on the same day. The week also saw multiple other high-severity vulnerabilities disclosed across OpenSSH, Android, Chrome, Debian APT, Node-RED, and Microsoft Paint, alongside incidents at Binance and attacks on QNAP and Zyxel devices.
Terminal2Shell Design Flaw Exposes Interactive Shell in All Operating Systems Since 1971
Security researchers have disclosed Terminal2Shell, a design-level vulnerability present in terminal emulators across every major operating system dating back to Unix v1 in 1971. The flaw allows any local user who opens a terminal application to immediately obtain a fully interactive command shell with all privileges of the current account, without additional authentication. Exploitation requires only local access, a working keyboard, and the ability to launch the Terminal application, with no second stage needed. Affected components include Thompson shell, Bourne shell, Bash, and zsh, with patches still missing in some projects as of 2024. Researchers emphasize that the issue stems from the fundamental architecture where a shell process attaches directly to user input upon terminal launch. Mitigation recommendations range from avoiding terminal use entirely to setting SHELL=/bin/false, which also disables normal system operation.
WordPress Core Update Flaw Draws Over 240,000 Attack Attempts Since Patch Release
Wordfence has blocked more than 240,000 attack attempts targeting a race condition vulnerability in the WordPress core update process, tracked as CVE-2026-119977 with a CVSS score of 8.1. The attempts began on October 28, the same day WordPress issued the fix, with a single-day peak exceeding 74,000 blocked requests. The flaw allows attackers to exploit predictable temporary upgrade files during the automatic core update, enabling them to complete an installation, create an administrator account, and upload malicious PHP code without any existing credentials. The vulnerability affects branches from version 4.7 through 7.1.3, with the fix available in 7.1.4 and backported releases for older lines. Because automatic updates are enabled by default on most sites, the exposure window opens silently during routine maintenance. Security researchers emphasize that the high volume of attempts does not confirm successful compromises, urging administrators to review user lists and modified files after any core update since late October.
Multiple Critical Vulnerabilities Found in OpenAM Identity Platform
Open Identity Platform disclosed 18 vulnerabilities in its OpenAM identity management platform on October 22, 2026. Three of these issues received the highest severity rating of Critical. The vulnerabilities were fixed in the OpenAM 16.1.4 release. One Critical flaw tracked as CVE-2026-123551 affects the WebSocket notification service used for session start and end events. Attackers can bypass authentication checks on WebSocket connections to leak user session tokens, enabling full session hijacking including for administrator accounts. V ulnCheck assigned a maximum CVSS v4.0 base score of 10.0 to this issue.
Analysis of 284 Major Russian Sites Reveals Widespread DMARC Misconfigurations, Outdated Libraries and Subdomain Takeover Risks
An automated scan of 284 large Russian websites found that 24 percent allow easy email spoofing because DMARC records are either missing or set to p=none. Nearly one quarter of readable sites still load JavaScript libraries such as jQuery versions from 2013-2016 that carry publicly known CVEs. Half the sites transmit visitor IP addresses and cookies to foreign analytics services despite privacy policies claiming otherwise. Five abandoned subdomains point to AWS and DigitalOcean addresses that could be claimed for phishing. Government sites performed no better than commercial ones on most checks. The researcher released the open-source Suveren tool so any organization can run the same tests against its own domains.
Top Cybersecurity Articles of the Week: Linux Kernel TCP Flaw Leads Security NEXT Rankings
Security NEXT has published its weekly ranking of the most-read articles for the period of November 1 to November 7, 2026. The list is dominated by critical vulnerability disclosures and patches across widely used platforms. Leading the chart is a severe flaw in the Linux kernel's IPv4 TCP connection handling that has already attracted proof-of-concept reports. Other prominent entries include remote code execution issues in WordPress, hundreds of fixes in Chrome 157, and multiple critical vulnerabilities in pgAdmin 4. The ranking also highlights confirmed exploitation of Apple product vulnerabilities and a network intrusion at Japan's Ministry of Foreign Affairs that may have exposed personal data.
SonicWall SonicOS SSL VPN Authentication Bypass Vulnerability Under Active Exploitation
SonicWall disclosed seven vulnerabilities in its SonicOS operating system on November 6, 2026, including an authentication bypass flaw in the SSL VPN feature. The issue, tracked as CVE-2026-19868, affects environments where SAML authentication is enabled and allows attackers with valid credentials from another method to circumvent SAML controls. This bypass can also undermine multi-factor authentication enforced through SAML. The company has received reports indicating that the vulnerability is already being exploited in the wild. Both physical firewalls and virtual appliances are impacted, and SonicWall rates the flaw at CVSS 7.1. Users are urged to apply the available updates immediately.
PHP2Shell Vulnerabilities Enable Pre-Application Code Execution on Unpatched Servers
The article explains how attackers can exploit two known PHP vulnerabilities, CVE-2026-109618 and CVE-2026-109619, collectively referred to as PHP2Shell, to run arbitrary code inside the PHP process before any application-level code executes. This grants the attacker the same privileges as the PHP user, typically www-data on Ubuntu systems running Apache with mod_php, allowing access to configuration files, database credentials, and the ability to write malicious files if permissions permit. The author demonstrates practical attack paths including reading config.php files, connecting directly to MySQL databases, and creating persistent backdoors such as hack.php that execute shell commands via URL parameters. Even when standard hardening measures like open_basedir, disabled dangerous functions, and separate system users are applied, the attacker can still execute code within PHP limits until the vulnerabilities are patched. The recommended immediate actions include updating PHP, restricting write permissions, disabling PHP execution in upload directories, and placing a hardened reverse proxy such as Cloudflare in front of legacy servers while blocking all direct traffic via firewall rules.
Citrix Issues Critical XenServer Patches for Host Compromise Vulnerabilities
Citrix published security bulletin CTX697256 on November 3, 2026, disclosing eight vulnerabilities affecting XenServer. The most severe issue, tracked as CVE-2026-98432 and rated critical, enables an unauthenticated attacker who reaches the management network to compromise the virtualization host and associated appliances. A second flaw, CVE-2026-102703, allows a privileged user inside a guest virtual machine to break out and take control of the underlying host, violating isolation guarantees. Six additional vulnerabilities impact network boot and secure boot processes, potentially allowing attackers to compromise VMs during startup or bypass code-signing policies. Affected products include XenServer 8.4 and 9 along with Workload Balancing and Conversion Manager appliances. Citrix recommends immediate application of the fixes and temporary isolation of the management network while updates are deployed.
Microsoft Paint Patch for CVE-2026-83844 Fails to Reach Some Windows 11 Users via Microsoft Store
Microsoft fixed a remote code execution vulnerability in the Paint application for Windows 11, but the update is not reaching all users through the Microsoft Store. The flaw, tracked as CVE-2026-83844, carries a CVSS score of 8.1 and involves an out-of-bounds memory read that could allow unauthenticated network attacks. Although exploitation is rated as highly complex, the issue is classified as important by Microsoft. The patch is delivered separately from Windows Update, requiring users to verify the Paint version manually in the Microsoft Store. The clean version is listed as 11.2609.401.0, yet multiple systems remain on 11.2603.251.0 despite automatic updates being enabled. Windows Latest reported the distribution problem after checking its own systems and collecting similar reports from administrators. No real-world exploitation of the vulnerability has been observed so far.
Mozilla Releases Firefox 159.0.1 to Patch High-Severity Layout Vulnerability CVE-2026-120572
Mozilla Foundation has issued Firefox 159.0.1 to address a high-severity vulnerability tracked as CVE-2026-120572. The flaw resides in the Layout: Block and Inline component responsible for web page rendering. It stems from improper handling of boundary conditions during layout processing. CISA assigned the issue a CVSSv3.1 base score of 8.8, confirming high impact. The update was published on November 3, 2026, and is rated high severity by both Mozilla and CISA. Users are advised to apply the patch immediately to mitigate potential exploitation risks.
WatchGuard AuthPoint Authentication Gateway Hit by Four Critical Vulnerabilities
WatchGuard disclosed four security advisories for its AuthPoint multi-factor authentication solution on November 4, 2026. Three of the issues received a Critical rating while one was rated High. The flaws reside in the AuthPoint Authentication Gateway component and affect environments integrated with LDAP and Active Directory. CVE-2026-121639 allows unauthenticated attackers to disrupt authentication services or delete directory synchronization settings over the network. The remaining three vulnerabilities enable man-in-the-middle attacks, capture-replay actions, and forged authentication results. No exploitation in the wild has been observed. WatchGuard has released updated versions to address all reported issues.
sshhole: OpenSSH Authentication Bypass on musl libc Systems Without PAM
An emergency patch for OpenSSH 10.6p2 was released on November 5, 2026, to fix a critical authentication bypass vulnerability affecting Linux systems using musl libc without PAM support. The flaw allowed attackers to log into accounts with a locked password by supplying any string longer than 256 bytes. The root cause traces back to a chain of engineering decisions: musl's crypt() returning '*' on length errors instead of NULL, OpenSSH's 2016 timing attack mitigation that selected salts from real hashes, and the resulting strcmp match between error result and the shadow '*' marker. Exploitation required a specific combination of musl, OpenSSH without PAM, password authentication enabled, and an account marked with '*' in /etc/shadow, notably impacting Alpine Linux cloud images. The vulnerability was discovered by researcher รzgรผn Kรผltekin using LLM-assisted fuzzing of 17,600 authentication variants. OpenSSH 10.6p2 or equivalent distribution patches close the issue; until applied, administrators should set PasswordAuthentication no where password login is unnecessary.
Critical Command Injection Vulnerability in SolarWinds Dameware Enables Remote System Compromise
SolarWinds disclosed CVE-2026-28336, a critical command injection flaw in its Dameware remote support tool on November 3, 2026. Rated 9.9 out of 10, the vulnerability allows an authenticated user to execute arbitrary commands on remote systems managed by the software. The issue stems from insufficient input validation when user-supplied data is passed to the operating system, enabling attackers to append malicious commands. Exploitation requires only a valid, even low-privileged, Dameware account and occurs over the network with low complexity and no user interaction. The flaw affects version 2026.3 and all prior releases, with a fix available in 2026.3.1. SolarWinds also recommends reviewing account lists and restricting network access to administrative segments. This marks the latest in a series of security issues for the vendor, following a privilege escalation fix in 2025 and patches for fifteen Serv-U vulnerabilities in July.
GhostMap Vulnerability Forces Android Devices into Unrecoverable Boot Loops
Bitdefender researchers have identified GhostMap, a vulnerability that causes system_server to crash repeatedly when processing a specially crafted APK file. The flaw stems from inconsistent handling of ZIP archive parameters across Android system libraries, allowing a malformed resource to trigger an infinite reboot cycle. No code execution or permissions are required; the malicious APK only needs to be present on the device. The issue affects devices running Android 10 and later, with successful reproduction demonstrated on a Pixel device running Android 17 and the August 2026 security patch. Safe mode fails to interrupt the loop, and recovery often requires a factory reset that erases local data. Google initially closed the report as unreproducible before reassigning it to the appropriate team for potential future remediation.
CISA Adds Apple CVE-2024-27834 to Known Exploited Vulnerabilities Catalog After Confirmed Exploitation
The U.S. Cybersecurity and Infrastructure Security Agency has added the Apple vulnerability CVE-2024-27834 to its Known Exploited Vulnerabilities catalog following confirmed in-the-wild exploitation. The flaw impacts multiple Apple platforms including iOS, iPadOS, macOS, Safari, tvOS, and watchOS. It is an authentication bypass issue that can be exploited for arbitrary read and write operations when an attacker already possesses initial access rights. The vulnerability was discovered and patched in 2024, yet exploitation activity has now prompted federal action. NIST rates the issue at CVSS 5.5 Medium. U.S. federal agencies are required to apply mitigations by November 18.
Ruby on Rails Releases Security Updates Fixing 21 Vulnerabilities Including Critical Active Storage Flaw
The Ruby on Rails development team has issued security updates for versions 8.1.4.1 and 8.0.5.2 that address a total of 21 vulnerabilities. One issue rated critical affects the Active Storage component when ImageMagick is used for image processing. The flaw tracked as CVE-2026-122006 carries a CVSS v3.1 base score of 9.8 and could allow arbitrary file writes or data exfiltration from untrusted uploads. Additional high-severity problems enable remote code execution, arbitrary file reads, parameter validation bypass, IP spoofing, cross-site scripting, and denial-of-service conditions. The 8.0 branch will reach end of security support on November 7, 2026, after which no further fixes will be provided. Administrators are strongly advised to apply the patches immediately.
European Supermarkets Hit by Refrigeration Cyberattacks Exploiting Danfoss CVEs
Multiple European supermarket chains suffered coordinated cyberattacks that remotely altered refrigeration unit temperatures to 50ยฐC, causing widespread food spoilage across France, Sweden, Ireland, Belgium, Luxembourg, and Estonia. Attackers exploited publicly disclosed vulnerabilities in Danfoss AK-SM 800A controllers, including a code-of-the-day authentication bypass and command injection flaws tracked as CVE-2025-41450 and CVE-2025-41451. The incidents, occurring in October and November, resulted in millions of euros in losses with no ransom demands observed. Claroty researchers had previously mapped thousands of exposed management interfaces running outdated firmware. Investigations by ANSSI and national authorities highlight risks to cyber-physical systems where configuration changes produce direct physical damage. Experts recommend immediate network segmentation, firmware updates, and enhanced monitoring of setpoint changes.
Negative Specifications: How Bug History Strengthens AI Agent Code for Ginux Kernel
The article explores how incomplete positive specifications lead to vulnerabilities and compatibility gaps when AI agents develop complex systems like the Ginux kernel. Author sgordey describes discovering memory limit bypasses, domain controller takeover via infinite loops, and ineffective SO_REUSEADDR flags during security audits of the Rust-written Linux-compatible kernel created by Gregory Kurtzer using HDAE methodology. It argues for building negative specifications drawn from historical vulnerabilities such as SACK Panic and SACK Slowness to define what must never happen and how to test it. The piece details practical integration of past bug data into frameworks including BMAD, OpenSpec, Kiro, and Superpowers, recommending dedicated steps like failure-history and challenge-spec tasks before coding begins. Tools rust-in-peace and reproof already apply similar multi-angle searches combining threat modeling, unaided discovery, and CVE history. The author stresses that requirements derived from real failures must enter both specifications and test plans to prevent agents from repeating known mistakes.
Proving Vulnerability Management Works: MTTR Metrics, Maturity Models, and Real-World Testing
This article explains how organizations can measure the effectiveness of their vulnerability management programs using key metrics like MTTR, coverage, and maturity levels. It emphasizes that without proper measurement, even advanced scanners and skilled teams cannot confirm whether the process is functioning or stalling. The piece highlights MTTR as the primary metric for executive discussions because it directly correlates with real-world exploit timelines. Industry benchmarks from Verizon DBIR 2026, Edgescan 2025, Bitsight 2024, and Qualys show that remediation often takes months, far exceeding regulatory requirements such as FSTEC Order 117. A five-level maturity ladder is presented, ranging from chaos to continuous CTEM, to help teams assess progress. The article concludes that simulated attacks and red team exercises provide the most honest validation of VM effectiveness beyond dashboard numbers.
WordPress Core Update RCE Vulnerability CVE-2026-119977 Actively Exploited, CISA Adds to KEV Catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical remote code execution flaw in WordPress to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. The vulnerability, tracked as CVE-2026-119977, resides in the core update mechanism and allows attackers to predict temporary file paths created during package updates, enabling unauthorized code execution from external sources. Wordfence assigned the flaw a CVSS v3.1 base score of 8.1 and reported blocking over 13,000 exploitation attempts targeting its customers within a single 24-hour period. The issue was addressed in the WordPress 7.1.4 release on October 28, 2026, with backports now being rolled out to all branches from version 4.7 onward. CISA has set a three-day remediation deadline of November 6, 2026, for U.S. federal agencies and instructed them to investigate potential compromises. Security researchers note that the attack leverages predictable temporary file locations during the update process, making it particularly dangerous for unpatched installations.
Barracuda ESG Hit by High-Severity Vulnerabilities Allowing Chained Root Access
Barracuda Networks has released patches for multiple products after disclosing two high-severity vulnerabilities that affect the Email Security Gateway (ESG). CVE-2026-116606 is a pre-authentication authorization bypass in ESG that permits an attacker with network access to the management interface to import a malicious backup file and alter device configuration without credentials. CVE-2026-111560 is an OS command injection flaw in timezone configuration handling that requires administrator login but grants root-level command execution. The command injection issue also impacts Load Balancer ADC, Message Archiver, WAF Control Center, Web Application Firewall, and Web Security Gateway. The vendor published its advisory on November 2, 2026, and urges immediate application of the fixes to prevent potential full system compromise through chained exploitation.
WordPress Patches Race Condition in Core Update Process Enabling Unauthenticated Remote Code Execution
WordPress addressed a critical race condition vulnerability in its core update mechanism on October 28, 2026, that could allow remote code execution without authentication. The flaw affects the automatic update process used by the majority of installations, exposing a temporary installer during file extraction to a predictable folder. Wordfence recorded 60,471 exploitation attempts within the first 24 hours after disclosure. The issue was discovered by researcher Umut Bayram and fixed across multiple branches including version 7.1.4, which bundles 22 security patches. Mitigations include immediate updates, restricting public access to the wp-content update directory, and ensuring application firewall coverage. Versions 4.6 and earlier receive no further security updates.
Google Releases November Android Security Patch Fixing 216 Vulnerabilities Including Critical Zero-Click Flaws
Google has issued its November security update for Android, addressing a total of 216 vulnerabilities with 23 classified as critical. The patch resolves multiple remote code execution flaws that require no additional privileges or user interaction, qualifying as zero-click attacks. Specific fixes include CVE-2026-58868 in the Framework component and CVE-2026-58876 along with CVE-2026-58936 in the System component, all impacting Android versions 14 through 17. Additional patches cover privilege escalation, information disclosure, and denial-of-service issues across the kernel, Bluetooth, virtualization layers, and chipsets from MediaTek and Qualcomm. No evidence of in-the-wild exploitation has been noted in the bulletin, yet the critical nature of the remote code execution bugs warrants immediate attention. Users must verify the 2026-11-05 patch level or newer in device settings, as simply running the latest Android version does not guarantee all fixes are installed. Some updates arrive via Google Play system updates while others depend on device manufacturers.
Backdoor with Password 123456 and Hardcoded Keys: How AI Cracked 'Encrypted' USB Drives
An AI agent rapidly discovered critical cryptographic weaknesses in multiple USB encryption and copy-protection products, including hardcoded backdoor accounts and keys that bypassed user passwords entirely. In the SecZure YutianDun drive, two hidden accounts with passwords 123456 and SECZURE.COM allowed full decryption of files without the administrator password. NetacFileLock used a fixed AES-256 key embedded in the binary, ignoring the user password completely while also logging passwords in plaintext and employing ECB mode. KakaSoft USB Copy Protection relied on a modified MD5 implementation with altered shift constants and a hardcoded internal password derived from an embedded seed, enabling full Blowfish decryption without any user input. Nexcopy stored its Triple DES content key and IV in an encrypted configuration file protected only by a fixed 32-byte certificate inside the viewer application. The AI completed analyses in minutes that previously required hours of manual time-travel debugging and reverse engineering.
CVE-2026-98432: Temporary nftables Filter with Auto-Rollback for Ubuntu Servers
Administrators are deploying a temporary nftables-based mitigation for CVE-2026-98432 on Linux systems while awaiting official kernel patches. The filter drops IPv4 TCP packets with IP header length exceeding five, reducing exposure to the vulnerability. The procedure includes verifying kernel status via Canonical, preparing rollback commands, and using systemd timers to automatically remove the table after five minutes if connectivity is lost. Steps cover syntax validation with nft --check, integration with existing firewall configurations, and post-reboot verification to ensure the temporary table persists without interfering with ufw or Docker rules. Red Hat guidance on discarding packets containing IP options is referenced as a complementary measure. The process is designed for single-server testing before scaling to production fleets, with explicit instructions to avoid flush ruleset operations that could disrupt other tables.
Old iPhones Remain Vulnerable to Bootloader Exploits Despite Airplane Mode for Crypto Seed Storage
Founder of OneKey Ishi Wang has warned that resetting an old iPhone, enabling airplane mode, and storing a cryptocurrency wallet recovery phrase on the device does not provide reliable protection. Hardware vulnerabilities such as checkm8 affecting iPhone 4S through iPhone X and usbliter8 targeting A12 and A13 chips allow attackers with physical access to bypass the secure boot chain and execute code before iOS loads. These issues persist because the bootloader code cannot be overwritten through standard resets or iOS updates. While device passcode, Secure Enclave, and application-level encryption still serve as barriers, the risk level depends on the specific model, iOS version, and password strength. Wang advises against relying on disconnected older iPhones as cold storage solutions for seed phrases.
Docker Bypasses UFW Firewall Exposing PostgreSQL and Redis Ports to Rapid Malware Infections
A common Docker Compose setup with exposed database ports on fresh VPS instances allows attackers to compromise systems within minutes despite active UFW rules. Docker's use of DNAT rules in the PREROUTING chain and insertion of DOCKER-FORWARD chains before UFW rules in the FORWARD table routes external traffic directly to containers on internal bridge networks. IPv6 support in Docker versions 27 and later creates additional exposure vectors when administrators focus only on IPv4 protections or disable IPv6 filtering. Bots scan cloud IP ranges for open ports including 5432 and 6379, deploying miners such as kdevtmpfsi and kinsing or using Redis replication to load malicious modules. Historical cases include a Qdrant test instance on Hetzner compromised in under two minutes and similar issues reported in Spree Commerce starter templates. The article details Netfilter mechanics, protected-mode limitations in Redis, and specific exploitation techniques like CONFIG SET for cron jobs and CVE-2022-0543 Lua sandbox escapes.
WordPress 7.1.4 Addresses RCE in Update Process and Multiple Stored XSS Vulnerabilities
The WordPress development team released version 7.1.4 on October 28, 2026, as a security update to resolve several vulnerabilities. The most severe issue allows remote code execution during the software upgrade process. Multiple stored cross-site scripting flaws were also fixed, including those triggered by specially crafted block markup and manipulated privacy data deletion requests. No CVE identifiers were disclosed in the advisory. Site administrators are strongly urged to apply the update immediately to prevent potential exploitation. The announcement was reported by Security NEXT on November 2, 2026.
CISA Adds Two Ivanti Connect Secure Flaws to KEV Catalog After Confirmed Exploitation
US authorities have issued an alert after confirmed exploitation of two vulnerabilities in Ivanti Connect Secure (ICS). The flaws, tracked as CVE-2026-111357 and CVE-2026-118527, were added to CISAโs Known Exploited Vulnerabilities Catalog on October 30, 2026. Attacks combining three vulnerabilities have also been observed in the wild. CVE-2026-111357 allows local authenticated attackers to escalate privileges due to missing authentication in a critical function. CVE-2026-118527 enables remote upload of arbitrary files to disk through predictable identifiers, even though authentication is required. The addition of CVE-2026-111357 was briefly withdrawn before being reinstated, highlighting administrative confusion around the listing.
Enodia: Open-Source Go Tool Automates Service Inventory, EOL Tracking and CVE Correlation
A DevOps engineer has released enodia, a single-binary Go CLI that discovers real versions of services across large heterogeneous environments and correlates them with end-of-life calendars and vulnerability databases. The tool was built after manual Ansible-based inventories and existing solutions such as endoflife.date, nvchecker, Renovate and Uptime Kuma proved insufficient for covering both infrastructure and application services while also providing actionable lifecycle, patch and branch status. Enodia uses product-specific probes for 123 technologies including PostgreSQL, MySQL, MariaDB, Jira, Confluence, Bitbucket, VMware vCenter, ESXi, pfSense and multiple Linux distributions, falling back to a generic URL-plus-regex probe when needed. Data collection is deliberately separated from evaluation so that inventory.jsonl files can be generated inside air-gapped networks and later analysed where CVE feeds are available. The project also contributed dozens of missing products and corrected EOL dates to the endoflife.date project and integrates both NVD and Russiaโs FSTEC BDU vulnerability databases. Special handling was added for MySQL/MariaDB connection-error counters, version-string masquerading, and vendor-specific update nomenclature to avoid false reports.
Telegram Voice Call Flaw Allows Remote Code Execution on Android Devices
Security researchers disclosed a vulnerability in Telegram for Android that enables remote code execution on a victim's device simply by answering a voice call. The attacker requires only a standard account, and the flaw was present in versions 8.6.2 through 12.10.3 released between March 2022 and September 2026. Telegram addressed the issue in version 12.10.4, released at the end of September 2026. The root cause lies in improper handling of the MediaState message exchanged during calls, specifically when processing rotation values and missing video state fields, leading to out-of-bounds memory reads. The same underlying fix was deployed earlier to shared call libraries, iOS, and desktop clients, but reached Android later. Researchers confirmed the impact only on private calls running on ARM64 Android devices, with no evidence of exploitation in the wild or public CVE assignment as of October 29, 2026.
360 Security Cloud Opens PHP2Shell Vulnerability Self-Check Platform to Government and Enterprise Users
360 Security Cloud has launched a dedicated self-assessment platform that allows organizations to scan their PHP-based websites and systems for the PHP2Shell vulnerability. The service is now available to government agencies, large enterprises, and small-to-medium businesses. Users can apply by scanning a provided QR code to determine how many of their assets run PHP, identify affected versions, and check whether any systems have already been compromised. The platform addresses key questions about exposure: the number of PHP-powered sites and systems, the presence of vulnerable versions, and signs of prior intrusion. The announcement emphasizes that the tool helps organizations proactively assess risk without requiring external assistance. The original Chinese report was published on October 30, 2026, and the service is positioned as a practical response to ongoing PHP-related security concerns.
Liferay Community Edition Misconfiguration Exposes Plaintext Passwords in Government Systems via CWE-319
A detailed analysis reveals how the use of Liferay Community Edition in a closed government information system led to the transmission of user passwords in plaintext through transactional emails. The issue stemmed from default notification templates that included the [$PASSWORD$] macro, combined with unadjusted system variables pointing to localhost instead of the production domain. Despite proper OAuth 2.0 delegation and CSRF protections, the misconfigured password change workflow sent permanent credentials in clear text to user inboxes. The root cause was traced to custom portlets that incorrectly reused the New Password Notification trigger intended only for administrator-initiated resets. Remediation involves removing the password macro from email templates and updating portal-ext.properties to enforce production host settings. The case highlights how open-source enterprise platforms require thorough hardening beyond initial code audits when deployed in high-security environments.
GitLab Critical Vulnerabilities Traced to Ruby Onigmo Regex Engine, Including Exploited CVE-2026-97229
GitLab has disclosed that four critical vulnerabilities, including the already-exploited CVE-2026-97229, originate from flaws in the Ruby programming language's Onigmo regular expression engine rather than in GitLab code itself. The most severe issue, CVE-2026-97229, is an integer overflow in regex processing within CI/CD configuration files and carries a maximum CVSSv3.1 base score of 10.0. GitLab released patches on October 8, 2026, covering versions 19.4.2, 19.3.5, and 19.2.8. Ruby's development team followed with its own advisory on October 23, 2026, addressing the same underlying defects. The remaining three vulnerabilities involve double-free memory errors and additional integer overflows during regex parsing and compilation. Because the root cause lies in a shared dependency, any application or environment relying on the affected Ruby Onigmo engine may also be exposed.
CISA Adds Cisco Secure Firewall and GitLab Flaws to Known Exploited Vulnerabilities Catalog
US authorities have warned that two vulnerabilities in Cisco Systems firewall products and the GitLab development platform are being actively exploited in the wild. The Cybersecurity and Infrastructure Security Agency added CVE-2026-76418 and CVE-2026-97229 to its Known Exploited Vulnerabilities catalog on October 29, 2026, urging immediate remediation. CVE-2026-76418 affects Cisco Secure Firewall ASA Software and Cisco Secure FTD Software, allowing unauthenticated attackers to trigger device reboots and cause denial-of-service conditions. CVE-2026-97229 is an integer overflow in GitLab stemming from insufficient validation of regular expressions in CI/CD configurations, enabling remote code execution without authentication. CISA noted that the GitLab issue originates from a dependency in Ruby/Onigmo and may impact other products beyond GitLab itself. Organizations are advised to apply patches or mitigations without delay to prevent further exploitation.
Cisco ASA and FTD Face DoS Vulnerability in SSL VPN Already Exploited in the Wild
Cisco Systems has disclosed a denial-of-service vulnerability affecting its Cisco Secure Firewall ASA and Cisco Secure Firewall FTD products. The flaw, tracked as CVE-2026-76418, resides in the SSL VPN remote access feature and carries a CVSS v3.1 base score of 8.6, rated High severity. Exploitation occurs when secondary authentication is configured on tunnel groups, allowing an attacker to send a crafted request that forces a device reboot without requiring authentication. Cisco confirmed active exploitation of the issue in October 2026. Security updates addressing the vulnerability are now available for both affected product lines. The advisory recommends immediate application of the patches to prevent service disruption.
Critical Pre-Auth RCE Vulnerability CVE-2026-118633 Affects All Sophos UTM Versions, Manual Patch Required After EOL
Sophos has disclosed a critical remote code execution vulnerability in its legacy Sophos UTM security gateway product. The flaw, tracked as CVE-2026-118633, carries a CVSSv4.0 base score of 9.2 and is rated Critical. It allows unauthenticated attackers to execute arbitrary commands as root by triggering a race condition through repeated attacks against the email proxy when scanning is enabled. Although the product reached end-of-life, Sophos released a manual patch that users must apply themselves because automatic updates are no longer available. The company urges immediate patching for any deployments still using the email protection feature and recommends migration to the supported Sophos Firewall. The issue was reported through Sophosโs bug bounty program by an external researcher.
PHP2Shell Campaign Chains PHP and Linux Kernel Flaws to Compromise 25 Servers Including US Government-Linked Network
Israeli security firm Dream disclosed a sophisticated campaign that achieved root access on 25 servers by chaining two remote code execution vulnerabilities in PHP2Shell with a Linux kernel flaw. The attackers targeted 24 perimeter firewalls from a single unnamed vendor plus one internal management server across the United States, Japan, Taiwan, and South Korea. Three of the compromised devices belonged to an environment connected to the US government, where the intrusion led to domain controller access and Active Directory enumeration. The attack chain began with CVE-2026-109618 and CVE-2026-109619, which granted initial web server access, and escalated via CVE-2026-46300 (Fragnesia) to obtain root privileges. Dream observed extensive reconnaissance using the Chinese search engine FOFA, with indicators pointing to Chinese-language tooling and timing, though no specific threat actor was attributed.
Threat Actors Exploit Critical CVE-2026-101767 RCE Flaw in Oracle E-Business Suite
Threat intelligence firm Defused detected active exploitation attempts against CVE-2026-101767 targeting Oracle E-Business Suite honeypots on October 27, 2026. The vulnerability carries a CVSS 3.1 score of 9.8, requires no authentication, and resides in the Thin Client Framework servlet within the Application Object Library component. Oracle released a fix seven days earlier in its October 2026 Critical Patch Update, covering versions 12.2.3 through 12.2.15. Successful exploitation grants SQL execution under the privileged APPS database account, enabling lateral movement to operating system commands and access to financial, payroll, and procurement records. Horizon3.ai privately reported the issue in July 2026, and prior similar flaws in the same product were leveraged by the Cl0p ransomware group. Immediate mitigation includes applying the quarterly patch or restricting access to the GanttDataServer servlet via URL firewall rules.
GEEKCON 2026 Returns to Shanghai: Hackers Demonstrate AI-Assisted Exploits Across Apps, Robots and Vehicles
GEEKCON 2026 brought the security conference back indoors to the CMG Media Cinema in Shanghai's West Bund after last year's open-air venue. Organizers introduced two new AI-focused tracks alongside the traditional DAF vulnerability exploitation challenge and 30+5 deep-dive sessions. In the AI Hacker Extreme Challenge, six teams used AI tools to compromise six real-world targets in a single afternoon, achieving eleven successful breaches. Demonstrations included remote hijacking of quadruped robots, silent app installation on Android devices, unauthorized vehicle control, and novel exploitation paths in fastjson 1.2.83 discovered with AI assistance. The AI Hacker Debate revealed audience division on whether human hackers will be replaced, while the human-only DAF track awarded no first or second prizes. Organizers framed the event as an effort to illuminate vulnerabilities before they appear in real-world attacks, echoing themes from The Matrix.
PHP Patched Against PHP2Shell: Save php -v Output as Potential Court Evidence
Two critical remote code execution vulnerabilities tracked as CVE-2026-109618 and CVE-2026-109619 were disclosed on October 21, 2026, affecting the PHP core interpreter across all versions below 8.2.35, 8.3.36, 8.4.27, and 8.5.12. The flaws, collectively called PHP2Shell, carry a CVSS 4.0 score of 9.2 and allow unauthenticated attackers to execute arbitrary code on servers running WordPress, 1C-Bitrix, Drupal, OpenCart, Laravel, and other frameworks. Official patches have been released, yet organizations must also restart PHP-FPM, web servers, and queue workers to fully eliminate the vulnerable code from memory. Russian regulators may impose fines up to 15 million rubles for personal data leaks stemming from unpatched instances, and courts will examine documentation proving when and how the vulnerabilities were addressed. Security teams are advised to preserve command outputs from php -v and php-fpm -v along with timestamps and responsible-party records. If signs of compromise are detected, logs must be retained before any remediation steps are taken, and notifications to Roskomnadzor must be filed within 24 hours of confirmed data exposure.
Black October Hype: Media Inflates AI Agent Role in PHP, GitLab and Cloud Platform Incidents
A detailed analysis reveals that recent high-profile cybersecurity stories have been sensationalized by attributing autonomous AI agent swarms to standard vulnerability disclosures and human-operated attacks. Critical PHP zero-day flaws enabling remote code execution were responsibly researched with GPT-5.6 Sol under OpenAI's Patch the Planet program, not by rogue AI bots launching millions of scans. The Argentina hospital compromises involved human operators using Anthropic's Claude Code CLI tool in a Human-in-the-Loop workflow rather than uncontrolled AI rebellion. Breaches at Zeabur, Railway and OpenCode stemmed from poor secret management and forgotten consoles, allowing credential theft for API abuse. A decade-old integer overflow in GitLab's Onigmo regex engine received a CVSS 10.0 score but had no connection to AI. The piece argues that adding AI narratives boosts clicks while obscuring classic attack patterns such as masscan-driven scanning after public PoC leaks.
Apple Patches 163 Vulnerabilities in iOS 27.2 Including Multiple WebKit Code Execution Flaws
Apple released iOS 27.2 and iPadOS 27.2 on October 26, addressing 163 vulnerabilities across its mobile platforms. More than 30 of these issues reside in the WebKit engine, with several enabling remote code execution simply by visiting a malicious webpage. The update also resolves two sandbox escapes, one in WebKit's process model and another in the App Store reported by Cisco Talos researchers. Four privacy-related fixes include a flaw in Apple Intelligence that could expose sensitive user data to remote attackers. On the same day, Apple issued iOS 18.7.11 for older devices such as the iPhone XS and XR, fixing a CoreGraphics out-of-bounds write tracked as CVE-2026-86950 that had already been exploited in a highly sophisticated targeted attack. The company stated that none of the 163 flaws in the main release have been observed in the wild.
Fuzzilli vs BigSleep: 37 and 45 Vulnerabilities Found in V8 Over Six Months with 25% Overlap
Google's Project Zero compared two automated vulnerability discovery tools targeting the V8 JavaScript engine in Chrome. The generative fuzzer Fuzzilli identified 37 actionable vulnerabilities over six months, while the LLM-based agent BigSleep found 45. Only about 25% of the vulnerabilities overlapped between the two systems. Additional experiments on historical bugs from 2023 onward showed a theoretical overlap of around 60%. The analysis indicates that fuzzing and LLM agents complement each other rather than one replacing the other. Researchers recommend using both approaches together to maximize coverage of complex bugs in well-tested software like V8.
ISPsystem Publishes Detailed Timeline of VMmanager 6 Attack and Vulnerability Analysis
ISPsystem has released a comprehensive post detailing a recent security incident targeting its VMmanager 6 virtualization management platform. The company outlines the chronology of the attack, the specific vulnerabilities exploited by threat actors, and the current mitigation status. The incident has sparked significant discussion within the professional hosting and virtualization community. ISPsystem emphasizes transparency and provides technical breakdowns to help users understand the attack vectors and required defensive measures. The post covers how the attackers gained initial access and the subsequent impact on managed virtual environments.
Google Fixes 52 Vulnerabilities in Chrome Including Four Critical Issues
Google has released security updates for its Chrome browser that address a total of 52 vulnerabilities. Four of these flaws received the highest severity rating of Critical. The updates were issued on October 27, 2026, for Windows, macOS, and Linux platforms. The critical vulnerabilities include memory corruption in the file system, input validation issues in the file API, problems in the Skia graphics library, and a Use After Free flaw in the Layout component. Specific CVEs patched are CVE-2026-118306, CVE-2026-118331, CVE-2026-118348, and CVE-2026-118344. The remaining 48 vulnerabilities received lower severity ratings but were still addressed in the same release.
CISA Adds Brotli and Adobe Commerce Flaws to Known Exploited Vulnerabilities Catalog
The U.S. Cybersecurity and Infrastructure Security Agency has added two vulnerabilities to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. CVE-2026-111497 affects Googleโs Brotli data compression library and can lead to code execution, information disclosure, or denial of service when specially crafted compressed data is processed. The flaw impacts any software that incorporates the Brotli decoder for decompression tasks, prompting vendors to release updates. CVE-2026-48356 resides in the file upload functionality of Adobe Commerce and Magento, allowing attackers to exploit improper handling during upload operations. CISA issued the alert on October 27, 2026, urging organizations to apply patches immediately to mitigate ongoing attacks. Related advisories also reference Brotli fixes in PHP and other products that bundle the library.
October 'In Trend VM' Report: Exploited Windows ALPC and Check Point VPN Vulnerabilities
Positive Technologies has released its October edition of the 'In Trend VM' digest, highlighting two actively exploited vulnerabilities. The first is CVE-2026-85880, a local privilege escalation flaw in the Windows ALPC mechanism that was used as a zero-day in targeted attacks by multiple APT clusters. The second is CVE-2026-85102, a critical remote code execution vulnerability in Check Point Security Gateway and Spark Firewall products that affects VPN negotiation. Both issues have been added to CISA's KEV catalog, with public proof-of-concept code already available for the Check Point flaw. The report details attack chains, affected versions, and recommended patches or workarounds.
Windows PHP Updated to Patch Critical Brotli Vulnerability CVE-2026-111497
The PHP development team has released updated Windows builds of PHP that bundle a patched version of the Brotli compression library. The update addresses CVE-2026-111497, a critical out-of-bounds write flaw in Google's Brotli decoder that can lead to remote code execution, information disclosure, or denial of service. The vulnerability carries a CVSS v4.0 base score of 9.2 and is rated Critical. It affects PHP environments where the cURL extension has automatic decompression of HTTP responses enabled, allowing Brotli decoding to occur. Although cURL automatic decompression is disabled by default, applications or HTTP client libraries may enable it. The fix updates the bundled Brotli component to version 1.2.1 in the releases PHP 8.5.12-1, 8.4.27-1, 8.3.36-1, and 8.2.35-1 published on October 26.
AI-Driven Software Boom Fuels Record Surge in Critical Vulnerabilities in 2026
The National Vulnerability Database recorded more than 72,000 CVEs between January and September 2026, compared with 48,244 for the entire previous year. The increase stems directly from the massive growth in code volume produced with AI coding assistants that allow features once requiring two weeks to be completed in a single afternoon. Much of this newly generated code reaches production without thorough human security review because models optimize for functionality rather than adversarial misuse. Common flaws such as missing authorization checks, exposed API keys in repositories, and insecure direct object references appear repeatedly in freshly deployed applications. Criminal groups have adopted the same AI tools to scan and test targets at scale, widening the gap between attacker speed and defender verification processes. Organizations that skip structured adversarial testing leave these issues to be discovered by threat actors, resulting in data exposure and operational disruption far costlier than pre-release remediation.
Apple Releases iOS 27.2 and iPadOS 27.2, Patching 163 Vulnerabilities Including Exploited Flaws in Older Versions
Apple has issued security updates for iOS and iPadOS, addressing a wide range of vulnerabilities across current and legacy operating systems. The iOS 27.2 and iPadOS 27.2 releases fix 163 CVEs affecting WebKit, the kernel, and image processing components. Older branches received targeted patches, with iOS 26.7.2 resolving 134 issues and iOS 18.7.11 addressing three vulnerabilities that include an actively exploited flaw. Specific fixes cover remote code execution risks in WebKit and ImageIO, plus sandbox bypasses. The updates were published on October 26, 2026, and apply to both iPhone and iPad devices. Apple also published detailed security content advisories for each branch.
CISA Adds PHP2Shell Flaws CVE-2026-109618 and CVE-2026-109619 to KEV Catalog After Confirmed Exploitation
The U.S. Cybersecurity and Infrastructure Security Agency has confirmed active exploitation of two remotely exploitable vulnerabilities in PHP collectively known as PHP2Shell. CVE-2026-109618 stems from improper handling during memory exhaustion, while CVE-2026-109619 involves use-after-free issues in internal state management. Both flaws allow unauthenticated remote code execution and pose elevated risk to any PHP environment processing external requests such as web servers. PHP development teams released patches on October 21 for supported branches including PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35, along with source-level fixes for end-of-life versions 7.4, 8.0 and 8.1. CISA has set a three-day remediation deadline of October 29 for U.S. federal agencies and requires verification that systems have not been compromised.
Security Week 2644: Active Exploitation of PHP2Shell Vulnerabilities Confirmed
PHP developers released patches for two critical vulnerabilities collectively known as PHP2Shell on October 20, affecting PHP 8.2 through 8.5 as well as older branches. The flaws allow unauthenticated remote code execution on affected servers, which power approximately 70 percent of websites. Despite expectations of immediate exploitation, confirmed attacks with working exploits only began on October 25. CrowdStrike noted technical difficulties in weaponizing the issues in real-world environments. Only one-fifth of top Russian websites had applied the fixes by October 25. Additional incidents included compromised eMudhra certificates, a critical GitLab flaw, and a 16-year-old Broadcom router vulnerability.
Positive Technologies Offers Up to 500,000 Rubles for Bypassing PT Application Firewall
Positive Technologies has expanded its Standoff Bug Bounty program to include rewards for bypassing its web application firewalls. Researchers can earn between 150,000 and 500,000 rubles for demonstrating practical bypasses against PT Application Firewall PRO and PT Application Firewall Cloud. The program targets the core protective mechanisms, including traffic filtering, attack detection rules, and the management layer used by administrators. Submissions must include reproducible attack scenarios that show how malicious requests can pass through undetected, rather than relying on scanner reports or theoretical findings. Reward amounts vary by severity and confirmed business impact, with critical issues in the PRO version paying up to 500,000 rubles. The company plans to use validated findings to strengthen detection rules and improve overall product resilience.
Tailscale SSH Vulnerability Allows Root Access via Unix Socket Redirection
A researcher identified flaws in Tailscale that let an attacker with existing SSH access on one node escalate to root privileges and move laterally across the network. Erica Windisch of Cyberdione Labs demonstrated the issues in lab conditions against Tailscale 1.104.2 and Headscale 0.29.5. The core problem stems from privileged operations performed by the tailscaled process when handling Unix socket redirection, granting an ordinary SSH session access to root-only resources. The researcher used the technique to interact with Docker and run elevated commands, and showed that broad access policies allow automated lateral movement in under a second. Additional issues include denial-of-service conditions and bypasses of certain restrictions. Recommendations include reviewing SSH policies and disabling unnecessary socket redirection, noting that Headscale 0.29.5 lacks an independent way to turn the feature off.
Critical CVE-2026-111497 Out-of-Bounds Write Flaw in Google Brotli Decoder Impacts Broad Range of Environments
A severe vulnerability has been identified in the Google-developed Brotli decoder used for decompressing data in web communications and other applications. The flaw, tracked as CVE-2026-111497, allows out-of-bounds writes when processing specially crafted compressed data, potentially enabling arbitrary code execution, information disclosure, or denial of service. It carries a CVSS v4.0 base score of 9.2 and is rated Critical. Google has released patched versions 1.2.1, 1.1.1, and 1.0.10 of the library. Node.js incorporated the fix in its updates, while Microsoft issued an out-of-band patch for .NET on October 25, 2026, to address the issue. The vulnerability affects any environment relying on the Brotli C implementation for data decompression.
Critical Code Injection Flaw in Okta Access Gateway Allows Authenticated Command Execution
Okta disclosed CVE-2026-115547, a critical code injection vulnerability in the administrative console of Okta Access Gateway. An authenticated administrator can execute arbitrary commands on the underlying system using the privileges of the gateway service account. The flaw received a CVSS 3.1 score of 9.1 and stems from insufficient input validation when processing configuration values in a specific format. Affected appliances running versions prior to 2026.10.2 must be updated, as no workaround is provided. The same disclosure day also included CVE-2026-115546 for authentication source verification and two PHP execution issues (CVE-2026-109618, CVE-2026-109619) previously seen in Palo Alto PAN-OS. Exploitation requires administrative console access and no in-the-wild attacks have been reported.
GitLab Discloses 12-Year-Old CVSS 10.0 Vulnerability Enabling Unauthenticated Remote Code Execution
GitLab has published a critical security advisory for CVE-2026-110264, a CVSS 10.0 flaw that permits unauthenticated remote code execution on both Community and Enterprise self-hosted instances. The vulnerability has existed in the codebase since 2014 and affects every version up to the latest release prior to the October 2026 patch. Exploitation requires no credentials or special conditions, allowing attackers to run arbitrary commands, exfiltrate source code, deploy backdoors, or move laterally. The issue remained undetected through multiple code iterations, security audits, and version updates due to its hidden trigger conditions within the large, complex application. Organizations are urged to immediately verify their version, review access logs for anomalies, and apply the official fix, while temporary mitigations include network restrictions and enhanced monitoring.
Google Brotli Decoder Vulnerability CVE-2026-111497 Enables Remote Code Execution in Node.js, Python, Bun and Envoy
A critical out-of-bounds write flaw in Google's Brotli decoder (CVE-2026-111497) affects multiple widely used platforms including Node.js, Python, Bun and Envoy. Imperva researchers demonstrated reliable remote code execution on official Node.js 24.22.0 builds for Linux arm64, naming the exploit Node2Shell. The vulnerability allows crafted Brotli-compressed data to corrupt memory, leading to crashes, information leaks or arbitrary code execution. Affected versions include Node.js releases below 22.23.4, 24.22.1 and 26.12.1, plus all versions of the Python brotli and brotlicffi packages. Patches have been issued for Node.js, while other projects await updates; no in-the-wild exploitation has been observed yet. The incident highlights recurring supply-chain risks where a single foundational library impacts thousands of downstream applications.
Microsoft Issues Out-of-Band .NET Security Updates Fixing Brotli Buffer Overflow and Other Flaws
Microsoft has released out-of-band security updates for .NET 10, .NET 9, and .NET 8 to address multiple vulnerabilities. The patches cover two newly identified issues and complete remediation for two additional flaws that received incomplete fixes during the October 13 monthly update cycle. One critical vulnerability, CVE-2026-111497, affects the Brotli compression library and can lead to information disclosure, denial of service, or privilege escalation when processing crafted compressed data. A second issue, CVE-2026-114148, enables local privilege escalation in Linux distribution packages for ASP.NET Core due to improper ownership handling. Microsoft also reissued fixes for remote code execution vulnerabilities CVE-2026-70197 and CVE-2026-102870. Organizations are advised to apply the updates immediately, including rebuilding and redistributing applications in container or embedded environments.
Top Cybersecurity Articles October 18-24 2026: GitLab, nginx, PHP and Node.js Flaws Dominate
Security NEXT published its weekly ranking of the ten most-read articles between October 18 and October 24 2026. The list is led by a critical GitLab vulnerability that also received back-port fixes for older branches. Multiple high-severity issues in the nginx web server, including three rated critical, took second place. PHP disclosed several serious flaws with an update scheduled for October 21, while Node.js prepared a security release for the same date. Additional entries covered actively exploited Fortinet and BeyondTrust vulnerabilities, Chrome 156 fixes for 353 issues, and U.S. government guidance urging immediate patching of PHP flaws or taking systems offline.
Critical SQL Injection Flaw in Arista VCO Already Exploited in Attacks
Arista Networks disclosed a critical SQL injection vulnerability in its VeloCloud Orchestrator product used for SD-WAN network management. The flaw, tracked as CVE-2026-114625, carries a CVSS v4.0 base score of 9.4 and a CVSS v3.1 score of 9.9, placing it in the highest severity category. Exploitation requires network access to the management interface and an authenticated session with Enterprise Read Only privileges or higher, after which attackers can escalate rights to reach internal management functions and compromise managed systems and data. The vendor has already observed active exploitation of the issue in the wild. Patches are available in versions 6.4.2.12, 6.1.3.10, and 5.2.3.18, and customers are urged to apply the updates immediately.
Researcher Develops Kernel Exploit for TP-Link EAP770 to Disable Faulty Qualcomm SFE Offload
A user who purchased the TP-Link EAP770 v1 Wi-Fi 7 access point in 2023 discovered persistent data corruption during large file transfers over Wi-Fi. The root cause was a DMA cache coherency bug in the Qualcomm qca-nss-dp driver combined with SFE/PPE hardware offload that recalculated TCP checksums on corrupted packets. TP-Link ended support for the v1 model before release and provided no firmware updates, while the device's restricted shell prevented the required sysfs writes. The researcher chained CVE-2022-0185 with pipe buffer manipulation to achieve root access, disable the offload features, and stop the corruption without bricking the device. The exploit was developed and tested first in QEMU using the closest available GPL kernel sources from the EAP783 model before being adapted to the live hardware. A separate unrelated bug was also found in the client Wi-Fi card firmware causing connection drops.
Apple iOS Security Architecture: From Power Button to App Launch in Modern Devices
The article examines the complete boot and trust chain in modern iPhones, starting from the immutable BootROM and progressing through iBoot, the XNU kernel, and the Secure Enclave. It explains how Secure Boot verifies signatures but does not guarantee absence of vulnerabilities, allowing exploits like checkm8 to persist across devices. The piece details data protection classes, BFU versus AFU states, and how passcodes interact with hardware-bound keys to limit brute-force attempts. It further describes application sandboxing, entitlements, code signing, and Pointer Authentication (PAC) as layered defenses that raise the cost of exploitation. The analysis shows why modern jailbreaks require multi-stage chains involving kernel read/write, sandbox escapes, and PAC bypasses rather than single vulnerabilities. Overall, the architecture transforms privilege from a simple scalar into a graph of capabilities across isolated components.
Critical PHP Vulnerabilities CVE-2026-109618 and CVE-2026-109619 Enable Unauthenticated Remote Code Execution
Two critical vulnerabilities in PHP, tracked as CVE-2026-109618 and CVE-2026-109619, both scoring CVSS 9.2, were disclosed on October 21. The flaws allow attackers to execute arbitrary code without authentication by triggering out-of-memory conditions that lead to use-after-free memory corruption. Exploitation involves specially crafted requests that manipulate uninitialized arrays and function pointers, with full chains demonstrated via PHP_SESSION_UPLOAD_PROGRESS and fatal error backtraces. The issues affect PHP versions starting from 5.4 and were discovered using AI tools Gemini 4 Argon and GPT-5.6 Sol, resulting in a patch exceeding 10,000 lines of code. Amazon detected attacks as early as October 17, with Cloudflare later reporting millions of exploitation attempts. Mitigation requires updating to patched versions such as PHP 8.2.35, 8.3.36, 8.4.27 or 8.5.12, while temporary workarounds include disabling session upload progress and fatal error backtraces.
Trend Micro ZDI Reports on Critical Linux KSMBD Vulnerabilities Leak to Public Mailing Lists Before Patches
Trend Micro Zero Day Initiative inadvertently published detailed vulnerability reports for the Linux kernel's KSMBD component into public mailing lists. Two flaws received CVSS scores of 9.0, enabling remote code execution under specific conditions. One issue involves a race condition during parallel SMB request handling, while the second stems from an incorrect buffer size calculation in the SMB Direct mechanism that requires RDMA and a writable share. Technical details including root causes and reproduction steps became publicly archived before fixes reached end users. The KSMBD maintainer has already merged a patch for ZDI-CAN-33774 into their repository, yet distribution kernels may still lack the update. Additional privilege-escalation and information-disclosure risks in other kernel components were also described in the leaked messages.
Node.js Issues Security Releases for 26.x, 24.x and 22.x Fixing High-Severity TLS and Brotli Flaws
Node.js published security updates on October 21, 2026 for the 26.x, 24.x and 22.x release lines. The patches address multiple high-severity vulnerabilities affecting TLS hostname validation and the Brotli decoder, along with updates to critical dependencies including OpenSSL and Undici. Several CVEs cover bypasses in certificate hostname checks when IP addresses use full-width digits or when hosts resolve loosely to IP addresses. A particularly serious out-of-bounds write in the Brotli decoder (CVE-2026-111497) could enable remote code execution on services processing compressed responses. Additional fixes resolve keep-alive socket timing issues, DNS resolution truncation with NUL characters, and entropy caching problems in crypto.randomUUID and randomInt functions. The releases also update c-ares, Undici, OpenSSL, SQLite and ca-cert bundles following the eMudhra intermediate CA compromise.
Atlassian October Security Bulletin Flags 176 Third-Party Library Vulnerabilities Across Jira, Confluence and Bitbucket
Atlassian released its October security bulletin detailing 176 vulnerability entries distributed across seven products including Jira, Confluence, Bamboo, Bitbucket, Crowd, Fisheye and Crucible. Of these, 162 entries carry high severity and 14 are rated critical, though the total does not represent 176 unique flaws because the same identifiers recur when multiple products share the same third-party library. All critical issues originate in external components rather than Atlassian code, with the most severe being CVE-2026-65637 in the Coyote component of Apache Tomcat used by Confluence, which allows interception of server-client connections. Affected versions and corresponding fixes were published for Confluence Data Center, Bamboo, Bitbucket Data Center, Jira Software and Jira Service Management, with the company stressing that administrators must compare exact build numbers against the full corrected-version table. No exploitation of the listed issues had been reported as of 22 October, and Atlassian classifies the inherited exposure from third-party libraries as lower priority, issuing separate critical alerts only for immediate-risk cases.
Node.js Addresses 10 Vulnerabilities Including High-Severity RCE Risk in Brotli Decompression
The Node.js development team disclosed ten vulnerabilities across multiple versions of the JavaScript runtime on October 21, 2026. Four of the issues received a High severity rating, with one carrying a remote code execution risk through improper handling of Brotli-compressed data. The flaw tracked as CVE-2026-111497 affects Node.js 26.x, 24.x, and 22.x branches and stems from out-of-bounds memory writes during decompression. Additional High-severity problems involve DNS name resolution truncation when NUL characters are present and hostname verification bypasses in TLS certificate validation. The project also resolved three Medium and three Low severity issues related to certificate validation, snapshot entropy reuse, and file-access permission checks. Updated releases Node.js 26.12.1, 24.22.1, and 22.23.4 incorporate fixes for both the core issues and vulnerabilities in bundled components such as c-ares, OpenSSL, SQLite, and Undici. Users of unsupported older branches are advised to migrate to currently maintained versions.
HPE Discloses 72 Vulnerabilities in AOS-10 and AOS-8 Wireless LAN Operating Systems, 33 Rated Critical
Hewlett Packard Enterprise has published a security advisory detailing 72 vulnerabilities affecting its wireless LAN operating systems AOS-10 and AOS-8. The flaws impact mobility controllers, gateways, access points, and virtual machines running these platforms. Thirty-three of the issues received the highest severity rating of Critical, with eight vulnerabilities scoring the maximum CVSSv3.1 base score of 10.0. Specific examples include a buffer overflow tracked as CVE-2026-79847 in AOS-10, plus command injection and SQL injection flaws in AOS-8 that allow unauthenticated remote code execution. No exploitation of these vulnerabilities has been observed at the time of disclosure. The advisory was released on October 22, 2026, and organizations are urged to apply available patches promptly.
Mitigating PHP2Shell RCE Vulnerabilities CVE-2026-109618 and CVE-2026-109619 on Legacy PHP 5.6 Stacks with Varnish, Docker and Apache mod_php
Two critical remote code execution vulnerabilities dubbed PHP2Shell (CVE-2026-109618 and CVE-2026-109619, CVSS 9.2) affect PHP before any application code executes, targeting the Zend Engine's longjmp() mechanism during OOM conditions and use-after-free issues with session upload progress. Official patches exist only for supported branches 8.2.35 and newer, leaving PHP 5.6 installations exposed, especially those using Apache with mod_php. An administrator of a high-traffic legacy enterprise application running PHP 5.6 inside Docker containers behind Varnish implemented a four-layer defense without rewriting the monolith. The approach disables session.upload_progress.enabled and sets memory_limit to -1 inside PHP, enforces strict cgroups memory limits and MaxConnectionsPerChild 1 in Apache, adds request-size and cookie-based blocks in Varnish VCL, and forces Connection: close on synthetic error responses. Testing revealed HTTP keep-alive drain issues and differing behavior between direct Apache requests and Varnish-routed traffic. The layered controls successfully neutralize both attack vectors while preserving production stability.
Node.js Fixes High-Severity Brotli Decoder Flaw Leading to Remote Code Execution
A high-severity vulnerability in the bundled Brotli decoder of Node.js allows out-of-bounds writes when processing attacker-controlled compressed data, potentially resulting in remote code execution. The flaw, tracked as CVE-2026-111497, affects all supported branches including 22.x, 24.x, and 26.x prior to the October 21, 2026 security release. Patched versions 22.23.4, 24.22.1, and 26.12.1 address the memory corruption issue that arises during Brotli decompression in services accepting third-party content. The same update resolves additional high-severity problems, notably hostname validation weaknesses in TLS. Organizations using unsupported branches such as 18.x, 20.x, 23.x, and 25.x must migrate to maintained releases, while those linking against system Brotli libraries should verify inclusion of upstream commit 0ed4268. Security teams are advised to audit all environments, including containers and CI pipelines, that process Brotli-encoded data.
Critical GitLab Flaw CVE-2026-110264 Allows Unauthenticated Remote Code Execution
GitLab has released patches for a maximum-severity vulnerability that permits unauthenticated remote code execution on self-managed installations. The flaw, tracked as CVE-2026-110264 with a CVSS score of 10.0, stems from an integer overflow during regular expression compilation. It affects every version starting from 7.0 released in 2014 and impacts both Community and Enterprise editions. The issue was reported through the company's HackerOne bug bounty program and has no available workaround. Patches are available in multiple recent releases, though earlier critical updates from October 12 do not cover this vulnerability. No exploitation has been observed as of October 22, and the flaw is not yet listed in the NVD or CISA's exploited vulnerabilities catalog.