CVEvulnerability
CVE-2026-63299
9.9 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-12
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-770
Description
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.
Affected configurations
• canonical lxd (>= 5.0.0 < 5.0.8)
• canonical lxd (>= 5.1 < 5.21.6)
• canonical lxd (>= 6.0 < 6.10)
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://github.com/canonical/lxd/security/advisories/GHSA-5h78-p252-989h Vendor Advisory, Exploit, Mitigation