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Node.js Patches Brotli Remote Code Execution Flaw: Find Vulnerable Runtimes Before Attackers Do

calendar_today October 23, 2026 person Saeed Abbasi domain qualys

Executive Summary On October 21, 2026, Node.js released fixes for 10 vulnerabilities across its three supported release lines: 22.x, 24.x, and 26.x. Four are rated High. The most severe, CVE-2026-111497, is an out-of-bounds write in the bundled Brotli decoder that Node.js says permits remote code execution.

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