CVE-2026-63298

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 3.1

9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-25)

CWE

CWE-78

Published

2026-08-12

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• canonical:lxd

References

• https://github.com/canonical/lxd/security/advisories/GHSA-vfh7-q59q-54v2
• https://github.com/canonical/lxd/security/advisories/GHSA-vfh7-q59q-54v2

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