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VULNERABILITIES

CVE-2026-28384 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g CISA-ADPVendor AdvisoryExploit
https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365 [email protected]Issue TrackingExploitVendor Advisory
https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052 [email protected]Patch
https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9 [email protected]Patch
https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f [email protected]Patch

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')[email protected]

Affected Products

ProductVersions
canonical lxd
>= 4.12, < 5.0.6
>= 5.21.0, < 5.21.4
>= 6.0, < 6.7

CPE

  • cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-28384
NVD Published Date:
Mar 12, 2026
NVD Last Modified:
Sep 18, 2026
Source:
[email protected]
CVE-2026-28384 Details - Not Deferred