{"id":"GHSA-pwjx-qhcg-rvj4","summary":"webpki: CRLs not considered authoritative by Distribution Point due to faulty matching logic","details":"If a certificate had more than one `distributionPoint`, then only the first `distributionPoint` would be considered against each CRL's `IssuingDistributionPoint` `distributionPoint`, and then the certificate's subsequent `distributionPoint`s would be ignored.\n\nThe impact was that correct provided CRLs would not be consulted to check revocation. With `UnknownStatusPolicy::Deny` (the default) this would lead to incorrect but safe `Error::UnknownRevocationStatus`. With `UnknownStatusPolicy::Allow` this would lead to inappropriate acceptance of revoked certificates.\n\nThis vulnerability is thought to be of limited impact. This is because both the certificate and CRL are signed -- an attacker would need to compromise a trusted issuing authority to trigger this bug.  An attacker with such capabilities could likely bypass revocation checking through other more impactful means (such as publishing a valid, empty CRL.)\n\nMore likely, this bug would be latent in normal use, and an attacker could leverage faulty revocation checking to continue using a revoked credential.","aliases":["CVE-2026-93602","RUSTSEC-2026-0049"],"modified":"2026-09-19T03:55:34.872089995Z","published":"2026-03-20T21:51:17Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-03-20T21:51:17Z","nvd_published_at":null,"cwe_ids":["CWE-299"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/rustls/webpki/security/advisories/GHSA-pwjx-qhcg-rvj4"},{"type":"PACKAGE","url":"https://github.com/rustls/webpki"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2026-0049.html"}],"affected":[{"package":{"name":"rustls-webpki","ecosystem":"crates.io","purl":"pkg:cargo/rustls-webpki"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.102.0-alpha.0"},{"fixed":"0.103.10"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-pwjx-qhcg-rvj4/GHSA-pwjx-qhcg-rvj4.json"}},{"package":{"name":"rustls-webpki","ecosystem":"crates.io","purl":"pkg:cargo/rustls-webpki"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.104.0-alpha.1"},{"fixed":"0.104.0-alpha.5"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-pwjx-qhcg-rvj4/GHSA-pwjx-qhcg-rvj4.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N"}]}