CVE-2026-112816

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-112816", "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "state": "PUBLISHED", "assignerShortName": "canonical", "dateReserved": "2026-10-19T18:32:16.961Z", "datePublished": "2026-10-30T16:42:06.617Z", "dateUpdated": "2026-10-31T03:56:41.468Z"}, "containers": {"cna": {"title": "Improper certificate validation in the HTTPS listener in LXD", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-295", "description": "CWE-295 Improper certificate validation", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-475", "descriptions": [{"lang": "en", "value": "CAPEC-475 Signature Spoofing by Improper Validation"}]}], "affected": [{"vendor": "Canonical", "product": "LXD", "platforms": ["Linux"], "collectionURL": "https://canonical.com/lxd", "packageName": "lxd", "repo": "https://github.com/canonical/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"}], "defaultStatus": "unaffected"}], "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."}], "references": [{"url": "https://github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4", "tags": ["vendor-advisory"]}, {"url": "https://discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557", "tags": ["vendor-advisory"]}, {"url": "https://discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024", "tags": ["release-notes"]}, {"url": "https://discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1", "tags": ["release-notes"]}, {"url": "https://discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1", "tags": ["release-notes"]}, {"url": "https://discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571", "tags": ["release-notes"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 10, "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"}}], "credits": [{"lang": "en", "value": "St\u00e9phane Graber", "type": "reporter"}], "source": {"discovery": "EXTERNAL"}, "providerMetadata": {"orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical", "dateUpdated": "2026-10-30T16:42:06.617Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-30T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-112816"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-31T03:56:41.468Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-112816", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-30T17:02:09.413887Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-30T17:08:26.280Z"}}], "cna": {"title": "Improper certificate validation in the HTTPS listener in LXD", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "reporter", "value": "St\u00e9phane Graber"}], "impacts": [{"capecId": "CAPEC-475", "descriptions": [{"lang": "en", "value": "CAPEC-475 Signature Spoofing by Improper Validation"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 10, "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"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"}], "references": [{"url": "https://github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4", "tags": ["vendor-advisory"]}, {"url": "https://discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557", "tags": ["vendor-advisory"]}, {"url": "https://discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024", "tags": ["release-notes"]}, {"url": "https://discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1", "tags": ["release-notes"]}, {"url": "https://discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1", "tags": ["release-notes"]}, {"url": "https://discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571", "tags": ["release-notes"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-295", "description": "CWE-295 Improper certificate validation"}]}], "providerMetadata": {"orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical", "dateUpdated": "2026-10-30T16:42:06.617Z"}}}, "cveMetadata": {"cveId": "CVE-2026-112816", "state": "PUBLISHED", "dateUpdated": "2026-10-31T03:56:41.468Z", "dateReserved": "2026-10-19T18:32:16.961Z", "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "datePublished": "2026-10-30T16:42:06.617Z", "assignerShortName": "canonical"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://canonical.com/lxd", "defaultStatus": "unaffected", "packageName": "lxd", "platforms": ["Linux"], "product": "LXD", "repo": "https://github.com/canonical/lxd", "vendor": "Canonical", "versions": [{"lessThan": "4.0.15", "status": "affected", "version": "4.0.14", "versionType": "semver"}, {"lessThan": "5.0.11", "status": "affected", "version": "5.0.10", "versionType": "semver"}, {"lessThan": "5.21.9", "status": "affected", "version": "5.21.8", "versionType": "semver"}, {"lessThan": "6.10.1", "status": "affected", "version": "6.9.0", "versionType": "semver"}]}], "source": "security@ubuntu.com"}], "cveTags": [], "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."}], "id": "CVE-2026-112816", "lastModified": "2026-10-31T04:18:16.660", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@ubuntu.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-112816", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-30T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-10-30T17:17:14.293", "references": [{"source": "security@ubuntu.com", "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"}], "sourceIdentifier": "security@ubuntu.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "security@ubuntu.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.14,4.0.15)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[5.0.10,5.0.11)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[5.21.8,5.21.9)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[6.9.0,6.10.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "LXD", "source": "cna", "vendor": "Canonical"}, "product": "lxd", "vendor": "canonical"}], "created": "2026-10-30T17:30:12.443632+00:00", "updated": "2026-10-30T17:30:13.000572+00:00", "vendors": ["canonical", "canonical$PRODUCT$lxd"]}