Node2Shell: Crafted Brotli Data Lets Code Run in an Official Node.js Build — What Operators Need to Know
Imperva researchers have demonstrated a proof-of-concept exploit—dubbed “Node2Shell”—that uses crafted Brotli-compressed data to achieve remote code execution (RCE) against an official Node.js 24.22.0 build for Linux arm64. The issue, tracked as CVE-2026-111497, was disclosed by Node.js and patched on October 21, 2026. While the demonstration did not work reliably on every attempt and targeted a specific build and architecture, it highlights a real risk for services that decode untrusted Brotli…