CVE-2026-63299
An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.
- Score
- CVSS 3.1 9.9 Critical
- Status
- Analyzed - security@ubuntu.com
- Published
- 2026-08-12
- Last modified
- 2026-10-24
- Weaknesses
- CWE-770
Affected products
References
- https://github.com/canonical/lxd/security/advisories/GHSA-5h78-p252-989h
