{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-34179","assignerOrgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","state":"PUBLISHED","assignerShortName":"canonical","dateReserved":"2026-03-26T09:24:08.449Z","datePublished":"2026-04-09T09:22:14.693Z","dateUpdated":"2026-04-09T11:54:18.487Z"},"containers":{"cna":{"title":"Update of type field in restricted TLS certificate allows privilege escalation to cluster admin","affected":[{"vendor":"Canonical","product":"lxd","platforms":["Linux"],"collectionURL":"https://github.com/canonical","packageName":"lxd","repo":"https://github.com/canonical/lxd","programFiles":["permissions.go"],"versions":[{"status":"affected","version":"4.12.0","lessThan":"5.0.7","versionType":"semver"},{"status":"affected","version":"5.1.0","lessThan":"5.21.5","versionType":"semver"},{"status":"affected","version":"6.0.0","lessThan":"6.8.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-915","description":"CWE-915 Improperly controlled modification of Dynamically-Determined object attributes","type":"CWE"}]}],"descriptions":[{"lang":"en","value":"In Canonical LXD versions 4.12 through 6.7, the doCertificateUpdate function in lxd/certificates.go does not validate the Type field when handling PUT/PATCH requests to /1.0/certificates/{fingerprint} for restricted TLS certificate users, allowing a remote authenticated attacker to escalate privileges to cluster admin."}],"references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-c3h3-89qf-jqm5","name":"Update of type field in restricted TLS certificate allows privilege escalation to cluster admin","tags":["vdb-entry","vendor-advisory"]},{"url":"https://github.com/canonical/lxd/pull/17936","name":"Improve validation on certificate edit","tags":["patch","issue-tracking"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"}}],"credits":[{"lang":"en","value":"Miha Purg","type":"finder"}],"source":{"discovery":"INTERNAL"},"providerMetadata":{"orgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","shortName":"canonical","dateUpdated":"2026-04-09T09:22:14.693Z"}},"adp":[{"references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-c3h3-89qf-jqm5","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-09T11:54:14.860013Z","id":"CVE-2026-34179","options":[{"Exploitation":"poc"},{"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":"2026-04-09T11:54:18.487Z"}}]}}