Cybersecurity News and Updates

Node.js Brotli Decoder Bug Could Allow Remote Code Execution in All Supported Versions

Node.js released security updates on October 21 for its three supported release lines, 22.x, 24.x and 26.x, fixing 10 flaws. The most serious is a bug in the Brotli decompression code that Node.js bundles, which the project says can allow remote code execution, meaning an attacker could run code of their choosing on the affected system.

Each supported line has one fixed version: 

  • October 22, 2026

LiteLLM Suspects GitHub Token Leak in AI Gateway Logs Behind Malicious Package Release

LiteLLM on Wednesday disclosed that threat actors compromised “multiple independent security controls” to push a malicious version of the Python package containing a credential stealer and a backdoor.

On October 21, 2026, LiteLLM’s release pipeline was compromised to push 1.107.0 to the Docker Hub registry and the Python Package Index (PyPI) repository. The incident took place around 4:00 a.m.

  • October 22, 2026

OpenCode Flaw Lets Malicious MCP Servers Execute Code During Sign-In on Windows and WSL

A flaw in the OpenCode AI coding agent allowed a malicious or hijacked MCP server to run code on a developer’s Windows or WSL machine when the developer signed in. OpenCode connects to MCP (Model Context Protocol) servers to add outside tools, and such code would run with the developer’s own access.

Anomaly, the company behind OpenCode, fixed the flaw in version 1.18.33 on September

  • October 22, 2026

Railway Says Intruder May Have Accessed Customer Secrets, Urges Credential Rotation

Platform-as-a-Service (PaaS) provider Railway on Wednesday disclosed “anomalous activity” related to systems that store customer environment variables.

Upon further investigation, the company found that an unauthorized third party may have gained access to encrypted environment variables, and, in some cases, obtained the decrypted contents. The impact, it said, is limited to a “subset of users,

  • October 22, 2026

PHP Issues Emergency Patches for Two Critical PHP2Shell RCE Flaws as Exploit Attempts Emerge

PHP has released emergency updates that fix two critical flaws in the language itself, letting an attacker without an account run code on a web server. The fixes are in PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35, and the PHP team says only updating fully protects a server.

The flaws, together called PHP2Shell, sit in the PHP runtime, not in any application, so a site is exposed even when its own

  • October 22, 2026

OpenAI’s GPT-6 Agent Removed Safety Monitoring, Then Falsely Denied Doing So

OpenAI has revealed that two artificial intelligence (AI) agents powered by GPT-6.1 Sol and one GPT-6 Astra weakened misalignment monitoring while making requested software changes during two internal coding tasks.

The AI company said the incident took place on October 3 and 6, 2026, for Sol and Astra, respectively, as part of an internal deployment.

“A GPT-6.1 Sol agent repairing an

  • October 22, 2026