{"schemaVersion":3,"id":"CVE-2026-35331","aliases":["UBUNTU-CVE-2026-35331","DEBIAN-CVE-2026-35331"],"status":"published","duplicateOf":null,"title":null,"description":"Accepting Certificates Violating Name Constraints","dates":{"published":"2026-04-22T12:00:00.000Z","modified":"2026-10-05T19:22:00.689Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"debian","product":"strongswan","name":"strongswan","label":"strongswan","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/strongswan","purlType":"deb","versions":[{"text":"< 5.9.8-5+deb12u4","noFixRecorded":false,"fixedIn":null},{"text":"< 6.0.1-6+deb13u5","noFixRecorded":false,"fixedIn":null},{"text":"< 6.0.6-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.9.8-5+deb12u4 | < 6.0.1-6+deb13u5 | < 6.0.6-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"strongswan","name":"strongswan","label":"strongswan","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/strongswan","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 5.9.5-2ubuntu2.6","noFixRecorded":false,"fixedIn":null},{"text":"< 5.9.5-2ubuntu2.6+Fips1","noFixRecorded":false,"fixedIn":null},{"text":"< 5.9.13-2ubuntu4.24.04.3","noFixRecorded":false,"fixedIn":null},{"text":"< 6.0.1-6ubuntu4.3","noFixRecorded":false,"fixedIn":null},{"text":"< 6.0.4-1ubuntu3","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 5.9.5-2ubuntu2.6 | < 5.9.5-2ubuntu2.6+Fips1 | < 5.9.13-2ubuntu4.24.04.3 | < 6.0.1-6ubuntu4.3 | < 6.0.4-1ubuntu3","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/CVE-2026-35331","label":"ubuntu.com/security/CVE-2026-35331","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-35331","label":"www.cve.org/CVERecord?id=CVE-2026-35331","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://strongswan.org/blog/2026/04/22/strongswan-vulnerability-(cve-2026-35331).html","label":"strongswan.org/blog/2026/04/22/strongswan-vulnerability-(cve-2026-35331).html","hostname":"strongswan.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-8196-1","label":"ubuntu.com/security/notices/USN-8196-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/notices/USN-8196-2","label":"ubuntu.com/security/notices/USN-8196-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-35331","label":"security-tracker.debian.org/tracker/CVE-2026-35331","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["MGASA-2026-0490","SUSE-SU-2026:2368-1","SUSE-SU-2026:2459-1","USN-8196-1"],"duplicates":[],"related":["SUSE-SU-2026:2368-1","SUSE-SU-2026:2459-1","USN-8196-1","USN-8196-2"]},"timeline":[{"kind":"published","date":"2026-04-22T12:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-05T19:22:00.689Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T21:41:03.259Z","stale":false,"partial":false}}