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.
21 intel reports
A suspected Russian-speaking actor used an AI-assisted toolkit (PentAGI) to exploit PaperCut vulnerabilities (CVE-2026-81578, CVE-2026-82078) and maintain persistence access across 45+ countries.
Suspected Lazarus Group operators are utilizing agentic AI for post-exploitation after compromising global PHP infrastructure via PHP2Shell vulnerabilities.
Affiliates of INC and The Gentlemen ransomware groups are using an AI-orchestrated infrastructure featuring the 'Phantom' autonomous red team framework to exploit edge devices and deploy ransomware.
APT28 (Swallowtail) is executing a complex cyber espionage campaign targeting NATO naval and aerospace manufacturers using the Hookedge backdoor and a novel reflective loader.
STAC4749 utilizes Microsoft Teams external chat and email bombing to impersonate IT support, gaining remote access via legitimate RMM tools to deploy GoGRPC and Chaos ransomware.
Longlegs (aka Storm-2603), a China-nexus threat actor, is deploying Warlock ransomware against critical infrastructure and government sectors by exploiting SharePoint 'ToolShell' vulnerabilities.
APT28 and MuddyWater utilize ClickFix variants to compromise organizations via social engineering, deploying multi-stage payloads including steganography and Python-based reverse tunnels for internal network pivoting.
Threat actors use Microsoft Teams social engineering and Quick Assist to deploy a two-component relay and reverse shell via DLL sideloading and WMI execution.
CISA red teams achieved full domain compromise and sensitive system access in two organizations, highlighting risks in cloud identity permissions and Active Directory Certificate Services (ADCS).
Certighost (CVE-2026-54121) is a critical improper authorization vulnerability in AD CS allowing low-privileged users to impersonate Domain Controllers by abusing unverified directory referrals.