Vulnerability Description
libp2p-rust is the official Rust language implementation of the libp2p networking stack. Prior to 0.13.1, libp2p-quic could panic during an inbound QUIC handshake when a remote peer presented a valid short-lived libp2p TLS certificate and delayed the final TLS 1.3 handshake fragment until after the certificate expired. In the Quinn post-handshake upgrade path, transports/quic/src/connection/connecting.rs called libp2p_tls::certificate::parse a second time in remote_peer_id and used expect on the result. The repeated wall-clock validity check could reject the now-expired certificate, causing the expect call to terminate any application exposing an affected libp2p-quic listener. This vulnerability is fixed in 0.13.1.
Related Weaknesses (CWE)
References
- https://github.com/libp2p/rust-libp2p/commit/212f3774af048e2cecfb2e6b1e08477685e
- https://github.com/libp2p/rust-libp2p/commit/e8f35e12c2418b04df6e9cdf036005e8aee
- https://github.com/libp2p/rust-libp2p/pull/6525
- https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-5hq8-qhww-jm7q
- https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-5hq8-qhww-jm7q
FAQ
What is CVE-2026-61544?
CVE-2026-61544 is a documented vulnerability. libp2p-rust is the official Rust language implementation of the libp2p networking stack. Prior to 0.13.1, libp2p-quic could panic during an inbound QUIC handshake when a remote peer presented a valid ...
How severe is CVE-2026-61544?
CVSS scoring is not yet available for CVE-2026-61544. Check NVD for updates.
Is there a patch for CVE-2026-61544?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.