EUVD Vulnerability Catalog
EUVD-2026-114194
Severity: CRITICAL
Base Score: 10
CVSS Version: 4.0
Vulnerability 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.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: 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
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Attack Vector (AV): Network
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Attack Complexity (AC): Low
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Attack Requirements (AT): None
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Privileges Required (PR): None
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User Interaction (UI): None
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Vulnerability Confidentiality Impact (VC): High
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Vulnerability Integrity Impact (VI): High
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Vulnerability Availability Impact (VA): High
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Subsequent Confidentiality Impact (SC): High
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Subsequent Integrity Impact (SI): High
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Subsequent Availability Impact (SA): High
Affected Vendors & Systems
Vendor
Canonical
References & Advisory Links
- https://github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4
- https://discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557
- https://discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024
- https://discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1
- https://discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1
- https://discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571
- https://nvd.nist.gov/vuln/detail/CVE-2026-112816
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
canonical
EPSS Probability
0
Known Aliases
GHSA-pq55-m3w3-jh54
CVE-2026-112816
Published On
2026-10-30
Last Updated
2026-10-30