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Researchers Demonstrate Node2Shell RCE Exploit on Node.js Build Using Crafted Brotli Data
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Fusion42 · 24 October 2026 · Fusion42 review
Security researchers demonstrated a remote code execution exploit called Node2Shell on an official Node.js build using crafted Brotli compressed data, affecting Node.js 22.x, 24.x, and 26.x lines. Node.js has disclosed the vulnerability and released security patches to fix this issue.
This Wire brief sits within Fusion42's coverage of Developer Tools and Cybersecurity, and 3 sources have reported it between 23 Oct 2026 and 26 Oct 2026.
◆ ◆ The Wire takeaway
You must update Node.js versions that decode Brotli data immediately as this vulnerability enables remote code execution. Running unpatched versions leaves your applications open to attack with crafted data, so fix your dependency now.
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3 sources · first reported 23 Oct 2026 · latest 26 Oct 2026
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