CVE-2026-80229

When performing transfers via libcurl’s multi interface, pooled TLS

connections can outlive their originating easy handles. In OpenSSL 3 provider

configurations, libcurl attaches an allocated library context to the easy

handle's state and passes it to OpenSSL without acquiring an ownership

reference; destroying the easy handle prematurely frees this context while the

active connection retains a dangling pointer, leading to a heap-use-after-free

upon subsequent I/O or post-handshake operations.