Storage volume cross-project move and snapshot restore bypass project disk limits (Canonical LXD)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.59 % · percentile 48 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- canonical
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-770 — Allocation of Resources Without Limits or Throttling
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | canonical |
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · security@ubuntu.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-57418
- GCVE · GCVE-0-2026-63299
Affected configurations (NVD CPE)
cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*≥ 5.0.0 < 5.0.8cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*≥ 5.1 < 5.21.6cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*≥ 6.0 < 6.10
Affected products
| Product | Versions |
|---|---|
| Canonical · LXD | affected 5.0.0 < 5.0.8 ; affected 5.21.0 < 5.21.6 ; affected 6.0 < 6.10 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |