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OpenAdvisories
High · 7.5 CVE-2026-91096 EUVD-2026-88545GHSA-8mv4-xrj3-xg7m

In proxygen from v2024.10.28.00 until v2026.09.28.00, WebTransportImpl::terminateSessionStreams (WebTransportImpl::destroy in releases befo…

Published Sep 28, 2026 · Updated Sep 30, 2026 · Assigned by Meta

Description

In proxygen from v2024.10.28.00 until v2026.09.28.00, WebTransportImpl::terminateSessionStreams (WebTransportImpl::destroy in releases before v2025.08.18.00) failed to unregister read callbacks for streams that were no longer open before destroying them. The transport could then invoke a read callback that had been freed.

Affected products

VendorProductAffectedFixed
Facebook proxygen v2024.10.28.00 – < v2026.09.28.00 v2026.09.28.00

References