VULNERABILITY INTELLIGENCE

CVE-2026-28384

CVSS score9.9 CRITICAL
EPSS probability0.70%
CISA KEVNot currently listed
Published2026-03-12
Last modified2026-09-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

An improper sanitization of the compression_algorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the snap versions 5.0.6-e49d9f4 (channel 5.0/stable), 5.21.4-1374f39 (channel 5.21/stable), and 6.7-1f11451 (channel 6.0 stable). The channel 4.0/stable is not affected as it contains version 4.0.10.

Weakness classification

  • security@ubuntu.com: CWE-78

Primary references