{"id":"CVE-2026-62420","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-62420","generatedAt":"2026-10-28T07:05:20.004Z","title":"An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations.","description":"An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When moving an instance cross-project to a different cluster member via POST /1.0/instances/{name} with migration: true, project: <target>, and target: <member>, the destination node skips all project restriction checks because the request arrives as an internal cluster notification. An attacker can exploit this to introduce disallowed instance configurations into a restricted project.","published":"2026-08-12T20:17:47.000Z","lastModified":"2026-10-24T16:10:00.000Z","status":"Analyzed","sourceIdentifier":"security@ubuntu.com","cvss":{"version":"3.1","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-863"],"affected":["canonical/lxd"],"epss":{"score":0.00539,"percentile":0.45183,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/canonical/lxd/pull/18605","tags":["Patch"],"source":"security@ubuntu.com"},{"url":"https://github.com/canonical/lxd/pull/18651","tags":["Patch"],"source":"security@ubuntu.com"},{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g","tags":["Vendor Advisory","Exploit","Mitigation"],"source":"security@ubuntu.com"},{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g","tags":["Vendor Advisory","Exploit","Mitigation"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-62420","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."}