Detections
Analytics
CVE-2026-91095
medium
Description
In proxygen from v2024.10.28.00 until v2026.09.28.00, the HTTPTransaction::onWebTransportUniStream and HTTPTransaction::onWebTransportBidiStream APIs could return stream handles that the stream handler had already freed. HQSession then installed those handles as transport read callbacks, which could lead to use of freed memory.
References
https://www.facebook.com/security/advisories/cve-2026-91095
https://github.com/facebook/proxygen/commit/479eb5574195764e80e6cedebef669f6baa85083