CVE-2026-12707 Unbounded path event queue growth in quiche via peer-driven source connection ID rotation

Summary Cloudflare quiche was discovered to be vulnerable to memory resource exhaustion due to unbounded queuing of post-handshake client migration events. Impact quiche supports the connection migration features described in Section 9 of RFC 9000, which allows a single QUIC connection to survive...

PT-2023-33059 · Amazon · S2N-Quic

Name of the Vulnerable Software and Affected Versions: s2n-quic versions =v1.24.0 Description: The issue in s2n-quic causes the endpoint to shut down due to a combination of peer-initiated connection migration and duplicate new connection ID frames being received. No AWS services are affected, an...