CVE-2026-11941 Use-after-free in connection ID iterator and FFI functions

Cloudflare Quiche was affected by 2 use-after-free vulnerabilities in the connection ID iterator FFI functions. The “quicheconnectioniditernext” and “quicheconnretiredscidnext” functions would return a pointer to a “ConnectionId” to the applications via function arguments, but the owned...

PT-2026-50870

Name of the Vulnerable Software and Affected Versions Cloudflare Quiche versions prior to 0.29.2 Description Two use-after-free issues exist in the connection ID iterator FFI Foreign Function Interface functions. The functions quiche connection id iter next and quiche conn retired scid next retur...