Critical 9.9Published Mar 12, 2026

CVE-2026-28384An 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 th…

Updated under an hour ago (2026-10-19 07:00 UTC)

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Every CVE for canonical lxd

Exploited in the last 30 days

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.

CVSS: 9.9 CRITICAL (v3.1, NVD)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: Not given
NVD analysis: Analyzed
Record last updated: Sep 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

canonical lxd canonical:lxd	from 4.12 before 5.0.6; from 5.21.0 before 5.21.4; from 6.0 before 6.7	NVD

References

https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365issue-tracking, exploit, vendor-advisory
https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052patch
https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9patch
https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4fpatch
https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9gvendor-advisory, exploit

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.