What is the CVSS score of CVE-2026-3351?

CVE-2026-3351 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Lxd are affected by CVE-2026-3351?

CVE-2026-3351 presents moderate security risk, a missing authorization vulnerability rated CVSS 4.3. Attackers could gain access beyond their authorized level.. A patch is available.

Is there a public PoC exploit available for CVE-2026-3351?

Yes, a public proof-of-concept exploit is available for CVE-2026-3351. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-3351?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Lxd CVE-2026-3351

MEDIUM

Missing Authorization (CWE-862)

2026-03-03 security@ubuntu.com

GHSA-crmg-9m86-636r

Linux Canonical Lxd Suse

4.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

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

SUSE

MEDIUM

qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:05 vuln.today

PoC Detected

Mar 11, 2026 - 18:41 vuln.today

Public exploit code

Patch released

Mar 11, 2026 - 18:41 nvd

Patch available

CVE Published

Mar 03, 2026 - 13:16 nvd

MEDIUM 4.3

DescriptionCVE.org

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.

AnalysisAI

Canonical LXD 6.6 on Linux contains an authorization bypass in the GET /1.0/certificates API endpoint that allows authenticated users with restricted privileges to enumerate all certificate fingerprints trusted by the server. Public exploit code exists for this vulnerability. While this enables information disclosure with limited impact, it could facilitate further attacks by revealing trust relationships on the system.

Technical ContextAI

Classified as CWE-862 (Missing Authorization). Affects the API component of Lxd. 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.

RemediationAI

A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.

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Vendor StatusVendor

SUSE

Severity: Medium

Product	Status
openSUSE Leap 15.6	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP5	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP6	Fixed
openSUSE Leap 15.5	Fixed

CVE-2026-3351 vulnerability details – vuln.today

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Lxd CVE-2026-3351

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More in Lxd

Same weakness CWE-862 – Missing Authorization

Vendor StatusVendor

SUSE

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External POC / Exploit Code