CVE-2026-28384
critical · 9.4An 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.
9.4
CVSS
0.7%
EPSS (exploit prob.)
50th
EPSS percentile
2026-03-12
Published
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-78
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| canonical | lxd | >= 4.12, < 5.0.6 |
| canonical | lxd | >= 5.21.0, < 5.21.4 |
| canonical | lxd | >= 6.0, < 6.7 |
Check a specific version with /api/v1/cve/match.
References
- https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365
- https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052
- https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9
- https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f
- https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g
- https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-28384