CVE-2026-3351 — MEDIUM (4.3)

Vulnerability Description

Improper authorization in the API endpoint GET /1.0/certificates in Canonical LXD 6.6 on Linux allows an authenticated, restricted user to enumerate all certificate fingerprints trusted by the lxd server.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Canonical	Lxd	6.6
Linux	Linux Kernel	-

Related Weaknesses (CWE)

CWE-862

References

https://github.com/canonical/lxd/commit/d936c90d47cf0be1e9757df897f769e9887ebde1Patch
https://github.com/canonical/lxd/pull/17738Issue TrackingPatch
https://github.com/canonical/lxd/security/advisories/GHSA-crmg-9m86-636rExploitMitigationVendor Advisory

FAQ

What is CVE-2026-3351?

CVE-2026-3351 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Improper authorization in the API endpoint GET /1.0/certificates in Canonical LXD 6.6 on Linux allows an authenticated, restricted user to enumerate all certificate fingerprints trusted by the lxd ser...

How severe is CVE-2026-3351?

CVE-2026-3351 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3351?

Check the references section above for vendor advisories and patch information. Affected products include: Canonical Lxd, Linux Linux Kernel.