CVE-2026-112816

{"id": "CVE-2026-112816", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-112816", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-30T00:00:00+00:00"}}], "cvssMetricV40": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 10.0, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security@ubuntu.com", "affectedData": [{"repo": "https://github.com/canonical/lxd", "vendor": "Canonical", "product": "LXD", "versions": [{"status": "affected", "version": "4.0.14", "lessThan": "4.0.15", "versionType": "semver"}, {"status": "affected", "version": "5.0.10", "lessThan": "5.0.11", "versionType": "semver"}, {"status": "affected", "version": "5.21.8", "lessThan": "5.21.9", "versionType": "semver"}, {"status": "affected", "version": "6.9.0", "lessThan": "6.10.1", "versionType": "semver"}], "platforms": ["Linux"], "packageName": "lxd", "collectionURL": "https://canonical.com/lxd", "defaultStatus": "unaffected"}]}], "published": "2026-10-30T17:17:14.293", "references": [{"url": "https://discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571", "source": "security@ubuntu.com"}, {"url": "https://discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1", "source": "security@ubuntu.com"}, {"url": "https://discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1", "source": "security@ubuntu.com"}, {"url": "https://discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024", "source": "security@ubuntu.com"}, {"url": "https://discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557", "source": "security@ubuntu.com"}, {"url": "https://github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4", "source": "security@ubuntu.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "Improper certificate validation in the HTTPS listener in Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9\u00a0before 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."}], "lastModified": "2026-10-31T04:18:16.660", "sourceIdentifier": "security@ubuntu.com"}