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This week's "node2shell" Brotli vulnerability (CVE-2026-111497) is exploitable in Python, other consumers of Brotli

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This week's "node2shell" Brotli vulnerability (CVE-2026-111497) is exploitable in Python, other consumers of Brotli
Summary

Blog Vulnerabilities & Threats Node2Shell evolves to HTTP2Shell. Brotli flaw (CVE-2026-111497) blast radius affects many libraries & apps using HTTPs. Node2Shell evolves to HTTP2Shell. Brotli flaw (CVE-2026-111497) blast radius affects many libraries & apps using HTTPs. Buckle up. Written by Dania Durnas Published on: Oct 23, 2026 Last updated on: Oct 24, 2026 TL;DR ⚠️ Brotli is a widely used compression library from Google. On Wednesday, October 21st NodeJS disclosed CVE-2026-111497, dubbed “node2shell,” wherein a Node.js process that decompresses attacker-controlled Brotli data can be made…

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Dania Durnas