{"id":"CVE-2026-62420","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-62420","summary":"An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When moving an…","details":"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":"2026-08-12T20:17:46.897","modified":"2026-08-12T20:17:46.897","cvss":{"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"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/canonical/lxd/pull/18605","label":"canonical/lxd#18605"},"references":[{"type":"WEB","url":"https://github.com/canonical/lxd/pull/18605"},{"type":"WEB","url":"https://github.com/canonical/lxd/pull/18651"},{"type":"WEB","url":"https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g"},{"type":"WEB","url":"https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T20:17:46.897"}}