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OpenAI's Codex Found a Node.js Brotli RCE. Imperva Ran Code on an Official Build

DEV Community: node·Gabriel Anhaia·2 days ago
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Eight bytes. That is the size of the internal buffer the Brotli decoder inside Node.js kept writing past, according to the Node.js security advisory of October 21 . Feed it the wrong compressed stream and, in the advisory's words, an attacker "can corrupt process memory, which can lead to a crash, disclosure of process memory, or remote code execution."

The bug is CVE-2026-111497. The advisory credits researchers from OpenAI Codex Security with reporting it.…

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