CVE-2026-112816

CRITICAL 10.0CVE-2026-112816 · Published 30/10/2026 · updated 31/10/2026

In short

CVE-2026-112816 is a CRITICAL (CVSS 10.0) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.30%, higher than 23.3% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571
discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1
discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1
discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024
discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557
canonical/lxd security advisory

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free