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 affects multiple programs that unpack Brotli-compressed data, including Bun, the Python Brotli and brotlicffi packages, and Envoy proxies configured to decompress Brotli. Tracked as CVE-2026-111497, the flaw has not been linked to any reported real-world attacks.
CERT24