CVE-2026-28384
Authenticated RCE via unsanitized compression_algorithm
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-78 |
| Vendor | canonical |
| Product | lxd |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 12, 2026 |
| Last Updated | Mar 13, 2026 |
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Affected Versions
Canonical / lxd
6.0 < 6.7 5.21.0 < 5.21.4 5.0.0 < 5.0.6 4.12
References
github.com: https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g github.com: https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052 github.com: https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9 github.com: https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f discourse.ubuntu.com: https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365