CVE-2026-63298 (GCVE-0-2026-63298)

Vulnerability from cvelistv5 – Published: 2026-08-12 19:22 – Updated: 2026-08-13 14:33
VLAI
Title
LXD arbitrary lxc.conf directive injection via NVIDIA instance configuration
Summary
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.
Severity
8.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 14:33 UTC
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
canonical CNA under the mitre root
CNA scorecard B 82/100 over 59 records in the last 180 days details
References
URL Tags
https://github.com/canonical/lxd/security/advisor… vdb-entryvendor-advisory
Impacted products
Vendor Product Version CPE status
Canonical LXD Affected: 5.0.0 , < 5.0.8 (semver)
Affected: 5.21.0 , < 5.21.6 (semver)
Affected: 4.0.0 , < 4.0.12 (semver)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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