Brotli decoder flaw CVE-2026-111497 affects Node.js, Bun, Python packages and Envoy; code execution was demonstrated on one Node.js build.

The vulnerability in Google’s Brotli decoder, first called “node2shell”, affects more software. Admins should update promptly ...

An out-of-bounds write in Google’s Brotli decoder affects multiple software ecosystems, prompting security updates for .NET, Node.js and two Python packages.

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