incus: An improper sanitization of the compression_algorithm parameter in Canonical LXD allows an authenticated, unprivilege...
CVE-2026-28384 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-28384, released March 12, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| incus · Debian 13.5 (trixie) | 6.0.4-2+deb13u5 | DSA-6184-1 | Mar 29, 2026 |
| incus · Debian 14 | 6.0.6-1 | DEBIAN-CVE-2026-28384 | Mar 12, 2026 |
| lxd · Debian 12.15 (bookworm) | 5.0.2-5+deb12u4 | DSA-6188-1 | Mar 31, 2026 |
| lxd · Debian 13.5 (trixie) | 5.0.2+git20231211.1364ae4-9+deb13u4 | DSA-6188-1 | Mar 31, 2026 |
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