OpenAI researchers find remote-code flaw in Brotli, prompting runtime patches

Node.js released fixes on October 21st after OpenAI Codex Security researchers reported a Brotli decoder bug that can allow code execution when applications process malicious compressed data.

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Why it matters

A fix to a shared library reaches users only when downstream products incorporate it, so operators need to track the runtimes and bundled dependencies they actually deploy.

OpenAI (@OpenAI): During this red-teaming exercise, we also found a vulnerability that allows for unauthenticated remote code execution in Brotli, a widely-de — During this red-teaming exercise, we also found a vulnerability that allows…

OpenAI researchers found a remote-code-execution vulnerability in Brotli, a compression library embedded in software including Node.js, Bun and Envoy, prompting security updates for affected runtimes. Node.js published patches on October 21st; OpenAI described the finding in an October 23rd post on X.…

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