{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-62420", "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "state": "PUBLISHED", "assignerShortName": "canonical", "dateReserved": "2026-07-14T08:57:47.667Z", "datePublished": "2026-08-12T19:12:28.097Z", "dateUpdated": "2026-08-12T19:27:44.371Z" }, "containers": { "cna": { "title": "Cross-project cluster migration bypasses project restrictions via cluster notification flag", "descriptions": [ { "lang": "en", "value": "An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project security restrictions during cross-project instance migrations. When moving an instance cross-project to a different cluster member via POST /1.0/instances/{name} with migration: true, project: , and target: , the destination node skips all project restriction checks because the request arrives as an internal cluster notification. An attacker can exploit this to introduce disallowed instance configurations into a restricted project." } ], "affected": [ { "vendor": "Canonical", "product": "LXD", "packageName": "LXD", "platforms": [ "Linux" ], "repo": "https://github.com/canonical/lxd", "defaultStatus": "unaffected", "versions": [ { "version": "5.0.0", "status": "affected", "versionType": "semver", "lessThan": "5.0.8" }, { "version": "5.21.0", "status": "affected", "versionType": "semver", "lessThan": "5.21.6" }, { "version": "6.0", "status": "affected", "versionType": "semver", "lessThan": "6.10" } ] } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-863 Incorrect Authorization", "cweId": "CWE-863", "type": "CWE" } ] } ], "references": [ { "url": "https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g", "tags": [ "vdb-entry", "vendor-advisory" ] }, { "url": "https://github.com/canonical/lxd/pull/18651", "tags": [ "patch" ] }, { "url": "https://github.com/canonical/lxd/pull/18605", "tags": [ "patch" ] } ], "impacts": [ { "capecId": "CAPEC-180", "descriptions": [ { "lang": "en", "value": "Exploiting Incorrectly Configured Access Control Security Levels" } ] }, { "capecId": "CAPEC-122", "descriptions": [ { "lang": "en", "value": "Privilege Abuse" } ] }, { "capecId": "CAPEC-233", "descriptions": [ { "lang": "en", "value": "Privilege Escalation" } ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL" } } ], "source": { "discovery": "EXTERNAL" }, "solutions": [ { "lang": "en", "value": "Upgrade to LXD version 5.0.8 or later, 5.21.6 or later, or 6.10 or later." } ], "providerMetadata": { "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical", "dateUpdated": "2026-08-12T19:12:28.097Z" } }, "adp": [ { "references": [ { "url": "https://github.com/canonical/lxd/security/advisories/GHSA-v9wr-9r7q-fh4g", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-12T19:26:54.388067Z", "id": "CVE-2026-62420", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T19:27:44.371Z" } } ] } }