{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-121565","assignerOrgId":"3938794e-25f5-4123-a1ba-5cbd7f104512","state":"PUBLISHED","assignerShortName":"Tanium","dateReserved":"2026-11-03T14:58:47.328Z","datePublished":"2026-11-03T22:17:22.997Z","dateUpdated":"2026-11-06T19:26:57.322Z"},"containers":{"cna":{"affected":[{"product":"TanOS","vendor":"Tanium","versions":[{"version":"1.8.5","status":"affected","lessThan":"1.8.5.0326","versionType":"custom"},{"version":"1.8.6","status":"affected","lessThan":"1.8.6.0193","versionType":"custom"},{"version":"1.9.0","status":"affected","lessThan":"1.9.0.0089","versionType":"custom"}]},{"product":"Asset","vendor":"Tanium","versions":[{"version":"1.33","status":"affected","lessThan":"1.33.334","versionType":"custom"},{"version":"1.36","status":"affected","lessThan":"1.36.182","versionType":"custom"},{"version":"1.39","status":"affected","lessThan":"1.39.164","versionType":"custom"}]},{"product":"Comply","vendor":"Tanium","versions":[{"version":"2.32","status":"affected","lessThan":"2.32.275","versionType":"custom"},{"version":"2.35","status":"affected","lessThan":"2.35.337","versionType":"custom"},{"version":"2.37","status":"affected","lessThan":"2.37.347","versionType":"custom"}]},{"product":"Connect","vendor":"Tanium","versions":[{"version":"5.29","status":"affected","lessThan":"5.29.272","versionType":"custom"},{"version":"5.37","status":"affected","lessThan":"5.37.177","versionType":"custom"},{"version":"5.47","status":"affected","lessThan":"5.47.135","versionType":"custom"}]},{"product":"Integrity Monitor","vendor":"Tanium","versions":[{"version":"3.6","status":"affected","lessThan":"3.6.608","versionType":"custom"},{"version":"3.7","status":"affected","lessThan":"3.7.383","versionType":"custom"},{"version":"3.8","status":"affected","lessThan":"3.8.362","versionType":"custom"}]},{"product":"Health Check","vendor":"Tanium","versions":[{"version":"1.13","status":"affected","lessThan":"1.13.653","versionType":"custom"}]},{"product":"Endpoint Configuration Toolset Solution","vendor":"Tanium","versions":[{"version":"1.51","status":"affected","lessThan":"1.51.61","versionType":"custom"},{"version":"1.59","status":"affected","lessThan":"1.59.51","versionType":"custom"},{"version":"1.71","status":"affected","lessThan":"1.71.26","versionType":"custom"}]},{"product":"Patch","vendor":"Tanium","versions":[{"version":"3.24","status":"affected","lessThan":"3.24.328","versionType":"custom"},{"version":"3.28","status":"affected","lessThan":"3.28.346","versionType":"custom"},{"version":"3.32","status":"affected","lessThan":"3.32.383","versionType":"custom"}]},{"product":"Performance","vendor":"Tanium","versions":[{"version":"1.25","status":"affected","lessThan":"1.25.196","versionType":"custom"}]},{"product":"Reputation","vendor":"Tanium","versions":[{"version":"6.6","status":"affected","lessThan":"6.6.150","versionType":"custom"},{"version":"6.7","status":"affected","lessThan":"6.7.143","versionType":"custom"},{"version":"6.8","status":"affected","lessThan":"6.8.167","versionType":"custom"}]},{"product":"Reveal","vendor":"Tanium","versions":[{"version":"2.4","status":"affected","lessThan":"2.4.109","versionType":"custom"},{"version":"2.5","status":"affected","lessThan":"2.5.166","versionType":"custom"}]},{"product":"Threat Response","vendor":"Tanium","versions":[{"version":"4.9","status":"affected","lessThan":"4.9.480","versionType":"custom"},{"version":"4.12","status":"affected","lessThan":"4.12.353","versionType":"custom"},{"version":"4.17","status":"affected","lessThan":"4.17.333","versionType":"custom"}]},{"product":"Provision Host","vendor":"Tanium","versions":[{"version":"10.4.100","status":"affected","lessThan":"10.4.100","versionType":"semver"},{"version":"10.8.115","status":"affected","lessThan":"10.8.115","versionType":"semver"},{"version":"10.9.113","status":"affected","lessThan":"10.9.113","versionType":"semver"},{"version":"10.10.189","status":"affected","lessThan":"10.10.189","versionType":"semver"},{"version":"10.11.127","status":"affected","lessThan":"10.11.127","versionType":"semver"}]}],"dateAssigned":"2026-11-03T14:58:46.819Z","datePublic":"2026-11-03T22:12:11.458Z","descriptions":[{"lang":"en","value":"Tanium addressed an improper certificate validation vulnerability in multiple products. Products have been updated to distrust several intermediate CA certificates associated with compromised private keys."}],"metrics":[{"cvssV3_1":{"version":"3.1","baseScore":7.4,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","description":"Improper Certificate Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"3938794e-25f5-4123-a1ba-5cbd7f104512","shortName":"Tanium","dateUpdated":"2026-11-04T11:24:05.622Z"},"references":[{"name":"TAN-2026-092","url":"https://security.tanium.com/TAN-2026-092"}],"title":"Tanium addressed an improper certificate validation vulnerability in multiple products"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-06T19:26:46.759376Z","id":"CVE-2026-121565","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-06T19:26:57.322Z"}}]}}