{"id":"CVE-2026-67693","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-67693","generatedAt":"2026-10-28T01:41:53.367Z","title":"An issue in gnutls v.3.8.13 allows an attacker to obtain sensitive information via failing to reject end-entity X.509 certificates that contain a contradictory combination of Key Usage (KU) and Extended Key Usage (EKU)","description":"An issue in gnutls v.3.8.13 allows an attacker to obtain sensitive information via failing to reject end-entity X.509 certificates that contain a contradictory combination of Key Usage (KU) and Extended Key Usage (EKU)","published":"2026-10-08T19:18:41.000Z","lastModified":"2026-10-19T15:17:07.000Z","status":"Awaiting Analysis","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-367"],"affected":[],"epss":{"score":0.00151,"percentile":0.04244,"date":"2026-10-26","history":[{"date":"2026-10-09","score":0.0011,"percentile":0.01222}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-19T16:30:14.000Z","detail":{"from":"7.5","score":"3.7","severity":"LOW","fromSeverity":"HIGH"},"summary":"Now scored CVSS 3.7 LOW (was 7.5)."},{"kind":"scored","label":"Newly scored","at":"2026-10-09T12:30:05.000Z","detail":{"from":null,"score":"7.5","severity":"HIGH","fromSeverity":null},"summary":"Now scored CVSS 3.7 LOW."},{"kind":"new","label":"New CVE","at":"2026-10-08T19:18:41.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-08T19:18:41.280Z"},"summary":"New CVE, low severity (CVSS 3.7)."}],"references":[{"url":"http://gnutls.com","source":"cve@mitre.org"},{"url":"https://gist.github.com/lkloliver/6fbfc191bc6163942c8017551ac3f238","source":"cve@mitre.org"},{"url":"https://gitlab.com/gnutls/gnutls/-/blob/3.8.13/lib/x509/verify.c#L1119-1178","source":"cve@mitre.org"},{"url":"https://gitlab.com/gnutls/gnutls/-/work_items/1642","source":"cve@mitre.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-67693","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}