Vulnerability in Canonical Lxd
CVE-2026-112816
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4 (vendor-advisory)
- discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canoni… (vendor-advisory)
- discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024 (release-notes)
- discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1 (release-notes)
- discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1 (release-notes)
- discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571 (release-notes)