Security NEXTJuly 22, 2026🇯🇵Translated from Japanese

Oracle Releases Quarterly Critical Patch Update Addressing 1449 Vulnerabilities Across Numerous Products

Oracle has released its quarterly Critical Patch Update on July 21, 2026, addressing a total of 1449 vulnerabilities across a wide array of products. After accounting for duplicates, the update resolves 1235 unique CVEs, demonstrating the extensive scope of the security effort.

The affected products include Oracle Database Server, Oracle Java SE, Oracle MySQL, Oracle Fusion Middleware, Oracle WebLogic Server, Oracle GoldenGate, Oracle NoSQL Database, Oracle APEX, Oracle Analytics, Oracle Enterprise Manager, Oracle E-Business Suite, Oracle PeopleSoft, Oracle JD Edwards, Oracle Siebel CRM, Oracle Supply Chain, Oracle Commerce, Oracle Communications, Oracle Systems, and Oracle Virtualization.

Analysis of the CVSSv3 base scores shows that 1024 vulnerabilities received ratings of 7.0 or higher. Of these, 261 issues scored 9.0 or above, including 10 vulnerabilities rated at the maximum of 10.0, 39 vulnerabilities rated 9.9, and 145 vulnerabilities rated 9.8.

Furthermore, 663 vulnerabilities are exploitable over the network without requiring authentication, highlighting the critical need for immediate patching in exposed environments.

Related articles

HabrVulnerabilities & Exploits

Code Signing Myths: Why a Valid Digital Signature Does Not Equal File Safety

Digital signatures confirm only that a file was issued by a specific publisher at a given time and remained unchanged afterward. They do not verify current safety, the legitimacy of the current holder, or whether the private key was stolen months earlier. Attackers obtain legitimate certificates through build-system leaks, supply-chain compromises such as the 2019 ASUS ShadowHammer incident, or weak reseller validation. Expired certificates remain usable because verification can be performed at the timestamp recorded by an RFC 3161 TSA token rather than the current system clock. Signature hashes in Authenticode deliberately exclude the checksum field, certificate table, and attribute certificate table, allowing limited tampering that older WinVerifyTrust implementations did not fully block. Revocation checks are soft by default, and revocation dates can leave an exploitation window open. Organizations should enforce publisher thumbprint allow-lists in WDAC or AppLocker and store signing keys exclusively in HSMs.

HispasecVulnerabilities & Exploits

Attackers Exploit Critical Langflow and Ruby on Rails Flaws for Credential Theft and C2 Infrastructure

Active exploitation has been confirmed for CVE-2026-0768 in Langflow and CVE-2026-66066 in Ruby on Rails. Attackers first focus on reconnaissance and secret exfiltration before establishing command-and-control channels, with potential escalation to remote code execution. In Langflow the flaw allows arbitrary Python code execution as root due to insufficient input validation, enabling attackers to dump environment variables and locate cloud credentials. The Ruby on Rails issue, tracked as KindaRails2Shell, stems from an arbitrary file read triggered when Active Storage processes untrusted image uploads with libvips, exposing secret_key_base and other sensitive keys. Observed campaigns show traffic originating from Russia against Langflow instances and activity targeting canaries in Singapore, Israel, and the United Kingdom for Rails deployments. Defenders are advised to inventory public instances, apply the latest patches, rotate exposed secrets, and monitor for suspicious file reads and C2 communications.

Security NEXTVulnerabilities & Exploits

Critical Vulnerabilities in PaperCut NG and PaperCut MF Exploited in the Wild

PaperCut Software has disclosed two serious vulnerabilities in its printing management solutions PaperCut NG and PaperCut MF. The issues were detailed in an advisory published on August 27, 2026, followed by emergency patches. Exploitation has already been confirmed in customer environments. CVE-2026-81578 stems from improper access controls in the web management interface, allowing unauthenticated remote changes to system settings. CVE-2026-82078 involves insecure dynamic class loading in database connections, enabling arbitrary Java bytecode execution with server privileges when combined with the first flaw. CVSS scores are 9.4 (Critical) and 8.8 (High) respectively, and both vulnerabilities have been added to CISA’s Known Exploited Vulnerabilities Catalog.

HabrVulnerabilities & Exploits

Positive Technologies Develops Dynamic Crawler for Single-Page Applications in PT BlackBox Scanner

Positive Technologies engineers have detailed the development of a dynamic crawler for their PT BlackBox DAST scanner to handle modern single-page applications built with frameworks such as React and Vue. The crawler must discover attack surface elements that only appear after user interactions because static parsing of initial DOM fails on SPAs where navigation occurs without URL changes. Key challenges include identifying interactive elements whose handlers are attached via JavaScript, detecting state changes after clicks or inputs, and managing combinatorial explosion of states caused by independent UI toggles. The team models the application as a labeled transition system and defines state equivalence using sets of 64-bit fingerprints of interactive elements rather than raw HTML similarity or URL values. This equivalence relation satisfies reflexivity, determinism from external observations, cheap hash-based comparison, slower growth than action count, and preservation of enabled actions across equivalent states. The approach allows the crawler to visit representatives of equivalence classes instead of every reachable state, keeping scans finite and practical within action budgets of several thousand interactions.