{"cve":"CVE-2026-93602","nvd":{"published":"2026-09-18T14:19:11.850","modified":"2026-09-22T20:25:55.870","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"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","score":5.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.4},"cwes":["CWE-299"],"references":["https://github.com/rustls/webpki/security/advisories/GHSA-pwjx-qhcg-rvj4","https://www.vulncheck.com/advisories/rustls-webpki-before-0.103.10-crl-revocation-check-bypass"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-93602","score":0.002,"percentile":0.09953,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pwjx-qhcg-rvj4","url":"https://osv.dev/vulnerability/GHSA-pwjx-qhcg-rvj4","summary":"webpki: CRLs not considered authoritative by Distribution Point due to faulty matching logic","modified":"2026-09-19T03:55:49.529651638Z","packages":[{"ecosystem":"crates.io","name":"rustls-webpki","purl":"pkg:cargo/rustls-webpki","ranges":[">=0.102.0-alpha.0 <0.103.10"],"fixed":["0.103.10"]},{"ecosystem":"crates.io","name":"rustls-webpki","purl":"pkg:cargo/rustls-webpki","ranges":[">=0.104.0-alpha.1 <0.104.0-alpha.5"],"fixed":["0.104.0-alpha.5"]}]},{"id":"RUSTSEC-2026-0049","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0049","summary":"CRLs not considered authoritative by Distribution Point due to faulty matching logic","modified":"2026-09-19T08:42:27Z","packages":[{"ecosystem":"crates.io","name":"rustls-webpki","purl":"pkg:cargo/rustls-webpki","ranges":[">=0.102.0-alpha.0 <0.103.10"],"fixed":["0.103.10"]}]}],"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."]}