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3 IOCs

Node2Shell: Brotli Flaw Hits Python Packages

SOCRadar
SOCRadar
Published October 26, 2026Original Report

Excerpt

[Update] October 27, 2026: PHP Ships Windows Builds With Brotli Fix The Node2Shell Brotli flaw (CVE-2026-111497), disclosed alongside Node.js fixes on October 21, 2026, also reaches Python through the PyPI Brotli and brotlicffi packages. Both compile Google’s vulnerable Brotli C decoder, and popular HTTP clients such as requests, httpx and aiohttp use them to decompress responses automatically once they are installed. That makes exposure easy to miss. A Python service can…

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Indicators of Compromise

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3 indicators

TypeIndicatorConfidenceScoreFirst Seen
CVECVE-2026-111497HighScore 83/100First seen
CVECVE-2026-109618HighScore 83/100First seen
CVECVE-2026-109619HighScore 83/100First seen

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