LXD Snapshot Import Privilege Escalation Vulnerability (Canonical LXD)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.63 % · percentile 50 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- canonical
- NVD status
- Analyzed
Description
A privilege escalation vulnerability exists in LXD from 6.0 before 6.9, 5.21.0 before 5.21.5, and 5.0.0 before 5.0.7 regarding the handling of project-restriction policies during snapshot restoration.. An authenticated project operator in a restricted multi-tenant environment can bypass policy restrictions by importing a maliciously crafted instance backup containing restricted configuration keys within a snapshot. When the snapshot is restored, these restricted keys are applied to the live instance without policy validation. Starting the modified instance grants the operator unauthorized host root access.
Weaknesses (CWE)
- CWE-863 — Incorrect Authorization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | canonical |
| CVSS 3.1 | HIGH 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · security@ubuntu.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-39794
- GCVE · GCVE-0-2026-9640
Affected configurations (NVD CPE)
cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*≥ 4.12 < 5.0.7cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*≥ 5.21.0 < 5.21.5cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*≥ 6.0 < 6.9
Affected products
| Product | Versions |
|---|---|
| Canonical · LXD | affected 5.21.0 < 5.21.5 ; affected 5.0.0 < 5.0.7 ; affected 6.0 < 6.9 |
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 |