Node2Shell: Node.js Brotli Remote Code Execution Vulnerability
A high-severity out-of-bounds write vulnerability in the Node.js Brotli decoder (Node2Shell) allows remote code execution when processing malformed compressed data.

Browse public community intelligence reports, source analysis, and threat research.
8 intel reports
The researcher Nightmare Eclipse (aka MSNightmare) has released multiple proof-of-concept exploits targeting Windows Defender, Kaspersky, Avast, CrowdStrike, and NVIDIA drivers to achieve local privilege escalation or denial-of-service.
Security researcher Nightmare Eclipse disclosed a Microsoft Defender zero-day exploit named ShieldBreak that bypasses previous patches to grant SYSTEM privileges.
Researcher 'Chaotic Eclipse' has released FalconFlank, a zero-day exploit abusing CrowdStrike Falcon's Office macro remediation to achieve SYSTEM privileges on Windows.
Security researcher Chaotic Eclipse has released multiple proof-of-concept exploits, including FalconFlank and ShieldBreak, targeting CrowdStrike, Kaspersky, and Microsoft Defender to achieve SYSTEM privileges.
The Dark Caracal threat actor is deploying a modular Go-based framework named GoCaracal that utilizes Ethereum smart contracts for resilient command-and-control infrastructure.
Nightmare Eclipse released ShieldBreak, a zero-day exploit bypassing previous patches to achieve SYSTEM privileges by exploiting a race condition in the Microsoft Malware Protection Engine.
Anonymous researcher 'bikini' released Exploitarium, a repository containing over 30 proof-of-concept exploits for unpatched vulnerabilities across multiple software projects, including critical flaws in libssh2 and Gitea.
The threat actor Nightmare Eclipse released the RoguePlanet zero-day exploit (CVE-2026-50656) targeting a race condition in Microsoft Defender to achieve SYSTEM privileges on Windows 10 and 11.