CVE-2026-62420 — Cross-project cluster migration bypasses project restrictions via cluster notification flag
An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When movin…
Published: 2026-08-12 · CVSS: 9.9 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7