Vulnerability Description
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 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Lxd | >= 5.0.0, < 5.0.8 |
Related Weaknesses (CWE)
References
- https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625Vendor AdvisoryExploitMitigation
- https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625Vendor AdvisoryExploitMitigation
FAQ
What is CVE-2026-63296?
CVE-2026-63296 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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 accep...
How severe is CVE-2026-63296?
CVE-2026-63296 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-63296?
Check the references section above for vendor advisories and patch information. Affected products include: Canonical Lxd.