{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-40214", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-05-07T21:54:10.614Z", "dateReserved": "2026-04-10T00:00:00.000Z", "datePublished": "2026-05-07T00:00:00.000Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Cyborg", "vendor": "OpenStack", "versions": [{"lessThan": "14.0.1", "status": "affected", "version": "3.0.0", "versionType": "semver"}, {"lessThan": "15.0.1", "status": "affected", "version": "15.0.0", "versionType": "semver"}, {"lessThan": "16.0.1", "status": "affected", "version": "16.0.0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "value": "In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller's project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects' instances, aka cross-tenant denial of service."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-282", "description": "CWE-282 Improper Ownership Management", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-05-07T21:54:10.614Z"}, "references": [{"url": "https://bugs.launchpad.net/openstack-cyborg/+bug/2144056"}, {"url": "https://www.openwall.com/lists/oss-security/2026/05/07/6"}], "x_generator": {"engine": "enrichogram 0.0.1"}}}, "dataVersion": "5.2"}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller's project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects' instances, aka cross-tenant denial of service."}], "id": "CVE-2026-40214", "lastModified": "2026-05-07T22:16:35.047", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-05-07T22:16:35.047", "references": [{"source": "cve@mitre.org", "url": "https://bugs.launchpad.net/openstack-cyborg/+bug/2144056"}, {"source": "cve@mitre.org", "url": "https://www.openwall.com/lists/oss-security/2026/05/07/6"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-282"}], "source": "cve@mitre.org", "type": "Primary"}]}

{}

{"created": "2026-05-08T00:30:25.940811+00:00", "title": "Cross\u2011Tenant Denial of Service via Unchecked Accelerator Request API", "updated": "2026-05-08T00:30:25.940823+00:00", "vendors": []}