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Brotli Decoder Flaw Behind Node.js RCE Also Affects Bun, Python and Other Widely Used Software

The Hacker News·October 24, 2026·1 min read
Brotli Decoder Flaw Behind Node.js RCE Also Affects Bun, Python and Other Widely Used Software

A memory-corruption flaw in Google's Brotli decoder, tracked as CVE-2026-111497, affects Bun, Python's Brotli and brotlicffi packages, and Envoy proxies that decompress Brotli data. Crafted compressed data can overwrite past a buffer's end, corrupting memory and potentially enabling remote code execution, as seen in Node.js.

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