{"cve":"CVE-2026-61544","nvd":{"published":"2026-09-15T20:17:35.147","modified":"2026-09-30T17:51:36.337","status":"Awaiting Analysis","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.2},"cvss_v3":null,"cwes":["CWE-248"],"references":["https://github.com/libp2p/rust-libp2p/commit/212f3774af048e2cecfb2e6b1e08477685e52b22","https://github.com/libp2p/rust-libp2p/commit/e8f35e12c2418b04df6e9cdf036005e8aee3c7a2","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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:54:41.405518556+00:00"},"epss":{"cve":"CVE-2026-61544","score":0.00284,"percentile":0.20682,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-5hq8-qhww-jm7q","url":"https://osv.dev/vulnerability/GHSA-5hq8-qhww-jm7q","summary":"libp2p-quic: Remote panic via certificate expiry race during QUIC handshake","modified":"2026-09-15T20:15:04.814697144Z","packages":[{"ecosystem":"crates.io","name":"libp2p-quic","purl":"pkg:cargo/libp2p-quic","ranges":["<0.13.1"],"fixed":["0.13.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}