CVE-2026-91096

EUVD-2026-88545
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
MetaCNA
UNKNOWN
---
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
facebookproxygen
2024.10.28.0 ≤
𝑥
< 2026.9.28.0
CNA