Critical · published August 13, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| canonical/lxd | ≥ 5.0.0, < 5.0.8 | 5.0.8 |
| canonical/lxd | ≥ 5.1, < 5.21.6 | 5.21.6 |
| canonical/lxd | ≥ 6.0, < 6.10 | 6.10 |