{"id":"CVE-2026-63296","title":"An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project restrictions during instance migration","summary":"An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project restrictions during instance migration. When migrating an instance to a target project, LXD accepts configuration overrides without va…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-863"],"vendor":"canonical","product":"lxd","affected":["lxd >= 5.0.0, < 5.0.8","lxd >= 5.1, < 5.21.6","lxd >= 6.0, < 6.10"],"patched":["lxd 6.10"],"published":"2026-08-12","updated":"2026-09-11","sourceUpdated":"2026-09-11T15:15:30.017","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-63296","references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625","label":"security@ubuntu.com"},{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00301,"epssPercentile":0.22915,"ingestedAt":"2026-09-11T17:50:33.510Z","slug":"CVE-2026-63296","body":"## Overview\n\nAn authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project restrictions during instance migration. When migrating an instance to a target project, LXD accepts configuration overrides without validating the new configuration against the target project's enforced restrictions. An attacker can exploit this flaw to move instances with disallowed high-privilege configurations into restricted projects, bypassing security controls.\n\n## Affected\n\n- `lxd >= 5.0.0, < 5.0.8`\n- `lxd >= 5.1, < 5.21.6`\n- `lxd >= 6.0, < 6.10`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `lxd 6.10`","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}