Black October Vulnerabilities: Node.js, Nginx, and Server-Side Exploits Analyzed

Vulnerabilities & ExploitsBlack October Vulnerabilities: Node.js, Nginx, and Server-Side Exploits Analyzed

A detailed review of 15 critical and high-severity vulnerabilities disclosed in October reveals that only a handful actually affected a production server running Astro, Strapi, Nginx, and Ubuntu 24.04. Node.js remained unpatched for four days, exposing a Brotli decompression flaw that could lead to remote code execution. Nginx packages lagged behind security updates despite unattended-upgrades being enabled, though configuration checks showed most CVEs did not apply. PHP and GitLab issues were irrelevant due to their absence from the stack. The author also migrated away from inline scripts and third-party dependencies to reduce attack surface. Commands for verifying package changelogs, detecting deleted binaries in memory, and confirming librsvg fixes in sharp are provided throughout the analysis.

HabrOct 29, 2026Translated from Russian

Read full article
Meridian digestThe week's most consequential security stories, distilled into one briefing.See the digest

Latest

AI-Driven Discovery of PHP2Shell Zero-Day Forces Rethink of DevSecOps Practices
Critical Pre-Auth RCE Vulnerability CVE-2026-118633 Affects All Versions of Sophos UTM
Cisco ASA and FTD Firewalls Affected by DoS Vulnerability in SSL VPN Already Exploited in the Wild
Only 11% of Organizations Fully Ready for New Russian Critical Infrastructure Protection Rules
Detecting Suspicious Processes in Linux: How to Investigate Unknown Services, Network Connections and Startup Tasks
From Accessible to Controllable: Ruishu Information Launches AITM for AI Agent Lifecycle Security
Google Opens Registration for Registered App Stores Program to Simplify Third-Party App Installs on Android
Meridian digestThe week's most consequential security stories, distilled into one briefing.See the digest
Scammers Use *#62# USSD Command to Fabricate Surveillance Claims and Steal Victims' Funds
Maximizing iPhone Privacy: Essential Settings to Enable, Disable, and Verify Immediately
Top 10 Secure DNS Servers for Privacy, Threat Blocking and Ad Filtering in 2026
PHP Patched Against PHP2Shell: Save php -v Output as Potential Court Evidence
Black October Hype: Media Inflates AI Agent Role in PHP, GitLab and Cloud Platform Incidents

From Russian sources

Black October Vulnerabilities: Node.js, Nginx, and Server-Side Exploits Analyzed
AI-Driven Discovery of PHP2Shell Zero-Day Forces Rethink of DevSecOps Practices
Only 11% of Organizations Fully Ready for New Russian Critical Infrastructure Protection Rules

From Portuguese sources

South Korean Hacker Uses Generative AI Framework ARTEX to Breach 90 Organizations and Steal 8.2 Million Records
Apple Patches 163 Vulnerabilities in iOS 27.2 Including Multiple WebKit Code Execution Flaws

From Chinese sources

From Japanese sources

Critical Pre-Auth RCE Vulnerability CVE-2026-118633 Affects All Versions of Sophos UTM
Cisco ASA and FTD Firewalls Affected by DoS Vulnerability in SSL VPN Already Exploited in the Wild
Google Fixes 52 Vulnerabilities in Chrome Including Four Critical Issues