{"id":"CVE-2026-93602","summary":"rustls-webpki before 0.103.10 CRL Revocation Check Bypass","details":"rustls-webpki versions before 0.103.10 and 0.104.0-alpha.5 contain faulty CRL authority-matching logic that compares only the first distributionPoint against each CRL's IssuingDistributionPoint, ignoring additional distributionPoints. Attackers with a compromised trusted issuing authority can present revoked certificates that pass revocation checks under UnknownStatusPolicy::Allow, or cause incorrect errors under the default deny policy.","aliases":["GHSA-pwjx-qhcg-rvj4","RUSTSEC-2026-0049"],"modified":"2026-09-19T03:55:49.529651638Z","published":"2026-09-18T13:20:12.259Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93602.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-299"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93602.json"},{"type":"ADVISORY","url":"https://github.com/rustls/webpki/security/advisories/GHSA-pwjx-qhcg-rvj4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93602"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/rustls-webpki-before-0.103.10-crl-revocation-check-bypass"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rustls/webpki","events":[{"introduced":"e5c8c6d9e72396ac65d649a8a90f2fbb0d7a4e20"},{"fixed":"348ce01c01cf8ce21199090c98853992c9c047a8"},{"introduced":"5a23b7e1c7b6e898d6bb437730a029b2695aa3eb"},{"fixed":"a531696b768d8a46f51fa36726e2f437292687de"}],"database_specific":{"extracted_events":[{"introduced":"0.102.0-alpha.0"},{"fixed":"0.103.10"},{"introduced":"0.104.0-alpha.1"},{"fixed":"0.104.0-alpha.5"}],"source":"AFFECTED_FIELD"}}],"versions":["v/0.103.9","v/0.104.0-alpha.4","v/0.104.0-alpha.3","v/0.103.8","v/0.104.0-alpha.2","v/0.103.7","v/0.104.0-alpha.1","v/0.103.6","v/0.103.5","v/0.103.4","v/0.103.3","v/0.103.2","v/0.103.1","v/0.103.0","v/0.102.8","v/0.102.7","v/0.102.6","v/0.102.5","v/0.102.4","v/0.102.3","v/0.102.2","v/0.102.1","v/0.102.0","v/0.102.0-alpha.8","v/0.102.0-alpha.6","v/0.102.0-alpha.4","v/0.102.0-alpha.2","v/0.102.0-alpha.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93602.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}]}