Description
Improper certificate validation in the HTTPS listener in Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9 before 4.0.15, 5.0.11, 5.21.9, 6.10.1 allows an unauthenticated attacker to authenticate as any trusted client and gain full access to the cluster and managed virtual machines via a crafted certificate chain.
Published: 2026-10-30
Score: 10 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 30 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 30 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Canonical
Canonical lxd
Vendors & Products Canonical
Canonical lxd

Fri, 30 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description Improper certificate validation in the HTTPS listener in Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9 before 4.0.15, 5.0.11, 5.21.9, 6.10.1 allows an unauthenticated attacker to authenticate as any trusted client and gain full access to the cluster and managed virtual machines via a crafted certificate chain.
Title Improper certificate validation in the HTTPS listener in LXD
Weaknesses CWE-295
References
Metrics cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2026-10-30T17:18:21.262Z

Reserved: 2026-10-19T18:32:16.961Z

Link: CVE-2026-112816

cve-icon Vulnrichment

Updated: 2026-10-30T17:08:26.280Z

cve-icon NVD

Status : Deferred

Published: 2026-10-30T17:17:14.293

Modified: 2026-10-30T18:17:21.363

Link: CVE-2026-112816

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T17:30:13Z

Weaknesses