LXD arbitrary lxc.conf directive injection via NVIDIA instance configuration (Canonical LXD)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.69 % · percentile 53 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- canonical
- NVD status
- Analyzed
Description
An improper neutralization of special elements vulnerability in LXD's NVIDIA instance configuration handling allows an authenticated attacker to inject arbitrary configuration directives. By supplying newline characters within the 'nvidia.driver.capabilities' or 'nvidia.require.*' configuration values, an attacker can manipulate the generated lxc.conf file. This flaw enables the attacker to execute arbitrary code on the host system with the privileges of the LXD daemon.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.7 | 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-2026-57511
- GCVE · GCVE-0-2026-63298
Affected configurations (NVD CPE)
cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*≥ 4.0.0 < 4.0.12cpe: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 ≤ 6.9
Affected products
| Product | Versions |
|---|---|
| Canonical · LXD | affected 5.0.0 < 5.0.8 ; affected 5.21.0 < 5.21.6 ; affected 4.0.0 < 4.0.12 |
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 |