CVE-2026-63298LXD arbitrary lxc.conf directive injection via NVIDIA instance configuration
Updated under an hour ago ()
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It affects Canonical LXD. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- canonical
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Canonical LXD canonical:lxd (from the name) | from 5.0.0 before 5.0.8; from 5.21.0 before 5.21.6; from 4.0.0 before 4.0.12 | CNA record |
canonical lxd canonical:lxd | from 4.0.0 before 4.0.12; from 5.0.0 before 5.0.8; from 5.1 before 5.21.6; from 6.0 through 6.9 | NVD |
References
- https://github.com/canonical/lxd/security/advisories/GHSA-vfh7-q59q-54v2vdb-entry, vendor-advisory, exploit, mitigation
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.