{"id":"EUVD-2026-79501","revision":null,"records":[{"revision":"779f4bd80d314492b150687630b62eeb","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-61544","aliases":[],"title":"libp2p-quic: Remote panic via certificate expiry race during QUIC handshake","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.","state":0,"publishedAt":"2026-09-15T19:46:13.721+00:00","modifiedAt":"2026-09-17T16:48:19.068+00:00","affected":[{"ecosystem":"Vendor product","name":"rust-libp2p","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"libp2p\",\n                    \"product\": \"rust-libp2p\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.13.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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,"severity":"HIGH"}],"references":["https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-5hq8-qhww-jm7q","https://github.com/libp2p/rust-libp2p/pull/6525","https://github.com/libp2p/rust-libp2p/commit/212f3774af048e2cecfb2e6b1e08477685e52b22","https://github.com/libp2p/rust-libp2p/commit/e8f35e12c2418b04df6e9cdf036005e8aee3c7a2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-61544","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-61544","identifiers":["CVE-2026-61544"]},"retained":false,"historicalAffected":[]},{"revision":"2cf6734197da417ca38607d3282797bc","observedAt":"2026-11-11T15:02:38.689+00:00","statement":{"source":"euvd","id":"EUVD-2026-79501","aliases":["CVE-2026-61544","GHSA-5hq8-qhww-jm7q"],"title":"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 d…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","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,"severity":null}],"references":["https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-5hq8-qhww-jm7q","https://github.com/libp2p/rust-libp2p/pull/6525","https://github.com/libp2p/rust-libp2p/commit/212f3774af048e2cecfb2e6b1e08477685e52b22","https://github.com/libp2p/rust-libp2p/commit/e8f35e12c2418b04df6e9cdf036005e8aee3c7a2"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-79501","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 15, 2026, 7:46:13 PM","dateUpdated":"Sep 17, 2026, 4:48:19 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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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.","state":0,"publishedAt":"2026-09-15T20:17:35.147+00:00","modifiedAt":"2026-09-30T17:51:36.337+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.2,"severity":"HIGH"}],"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"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61544","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-248"],"productCriteria":[],"sourceDates":{"published":"2026-09-15T20:17:35.147","lastModified":"2026-09-30T17:51:36.337"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-61544","identifiers":["CVE-2026-61544"]},"retained":false,"historicalAffected":[]},{"revision":"63b5b58a33914dc48a4ca13f4ff1a990","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-5hq8-qhww-jm7q","aliases":["CVE-2026-61544"],"title":"libp2p-quic: Remote panic via certificate expiry race during QUIC handshake","description":"### Summary\n\n`libp2p-quic` can panic on an inbound QUIC handshake if a malicious peer presents a valid, short lived libp2p TLS certificate and delays the final TLS 1.3 handshake fragment until the certificate expires.\n\nThis is remotely reachable by a network peer and can crash applications exposing a libp2p QUIC listener.\n\n### Details\nDuring the TLS handshake, `libp2p-tls` parses and validates the peer certificate. After Quinn reports handshake completion, `libp2p-quic` re-parses the same certificate in the post-handshake upgrade path and assumes this cannot fail:\n\nhttps://github.com/libp2p/rust-libp2p/blob/969b707bf1177ebebd1febc285c3fd22793b95c5/transports/quic/src/connection/connecting.rs#L65-L66\n\nHowever, `libp2p_tls::certificate::parse()` re-runs certificate verification on every call, including a wall-clock validity check. A certificate that was valid during the first handshake time parse can expire before the second post-handshake parse, causing the `expect(...)` to panic.\n\n\n### PoC\nA malicious peer can trigger this by:\n1. Opening a QUIC connection to a libp2p QUIC listener.\n2. Presenting a valid libp2p TLS certificate with a very short lifetime.\n3. Allowing the initial handshake-time certificate validation to succeed.\n4. Withholding the final client handshake fragment packet until after the certificate expires, but before the QUIC handshake timeout elapses.\n5. The listener completes the handshake and hits the post-handshake certificate re-parse, which panics.\n\n### Impact\nRemote unauthenticated denial of service. Any application exposing an affected `libp2p-quic` listener can be crashed by a network peer that performs a valid-looking QUIC/TLS handshake with attacker-controlled timing. No malformed packets are required.","state":0,"publishedAt":"2026-09-15T20:01:17+00:00","modifiedAt":"2026-09-15T20:15:04.8146971+00:00","affected":[{"ecosystem":"crates.io","name":"libp2p-quic","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.13.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"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":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-5hq8-qhww-jm7q","https://github.com/libp2p/rust-libp2p/pull/6525","https://github.com/libp2p/rust-libp2p/commit/212f3774af048e2cecfb2e6b1e08477685e52b22","https://github.com/libp2p/rust-libp2p/commit/e8f35e12c2418b04df6e9cdf036005e8aee3c7a2","https://github.com/libp2p/rust-libp2p"],"sourceUrl":"https://github.com/advisories/GHSA-5hq8-qhww-jm7q","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-5hq8-qhww-jm7q","identifiers":["GHSA-5hq8-qhww-jm7q","CVE-2026-61544"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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