CVE-2026-12411
Broken Access Control in Canonical LXD DevLXD API
Description
Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest's custom storage volume via a crafted device PATCH request over /dev/lxd when security.devlxd.management.volumes is enabled.
INFO
Published Date :
June 26, 2026, 3:27 p.m.
Last Modified :
June 26, 2026, 3:27 p.m.
Remotely Exploit :
No
Source :
canonical
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | cc1ad9ee-3454-478d-9317-d3e869d708bc |
Solution
- Restrict device PATCH requests to authorized users.
- Disable security.devlxd.management.volumes if not needed.
- Apply security patches for LXD.
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