{"id":"UBUNTU-CVE-2026-40214","details":"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.","modified":"2026-06-09T21:19:11.278166667Z","published":"2026-05-07T22:16:00Z","related":["USN-8413-1"],"upstream":["CVE-2026-40214"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-40214"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-40214"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2026/05/07/6"},{"type":"REPORT","url":"https://bugs.launchpad.net/openstack-cyborg/+bug/2144056"},{"type":"REPORT","url":"https://security.openstack.org/ossa/OSSA-2026-011.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8413-1"}],"affected":[{"package":{"name":"cyborg","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/cyborg?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"14.0.0-3+deb13u1build0.25.10.1"}]}],"versions":["13.0.0-2","14.0.0-2","14.0.0-3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"cyborg-agent","binary_version":"14.0.0-3+deb13u1build0.25.10.1"},{"binary_name":"cyborg-api","binary_version":"14.0.0-3+deb13u1build0.25.10.1"},{"binary_version":"14.0.0-3+deb13u1build0.25.10.1","binary_name":"cyborg-common"},{"binary_version":"14.0.0-3+deb13u1build0.25.10.1","binary_name":"cyborg-conductor"},{"binary_name":"python3-cyborg","binary_version":"14.0.0-3+deb13u1build0.25.10.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40214.json"}},{"package":{"name":"cyborg","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/cyborg?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.0.0-2ubuntu0.1"}]}],"versions":["14.0.0-3","15.0.0-1","16.0.0~rc1-2","16.0.0-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"cyborg-agent","binary_version":"16.0.0-2ubuntu0.1"},{"binary_name":"cyborg-api","binary_version":"16.0.0-2ubuntu0.1"},{"binary_version":"16.0.0-2ubuntu0.1","binary_name":"cyborg-common"},{"binary_version":"16.0.0-2ubuntu0.1","binary_name":"cyborg-conductor"},{"binary_version":"16.0.0-2ubuntu0.1","binary_name":"python3-cyborg"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40214.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}