Vulnerability Intelligence Report
Improper certificate validation in the HTTPS listener in 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.
No Active Exploit Signals
CVSS Base Score
10.0
CRITICAL
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-295 ↗CWE-295 Improper certificate validation
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Canonical | LXD | 4.0.14 < 4.0.15 (affected), 5.0.10 < 5.0.11 (affected), 5.21.8 < 5.21.9 (affected), 6.9.0 < 6.10.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Canonical Ltd. · Vendor · UK |
| Reserved | 2026-10-19T18:32:16 |
| Published | 2026-10-30T16:42:06 |
| Last Updated | 2026-10-31T03:56:41 |
Community Chatter & Buzz