{"cve":"CVE-2026-40214","nvd":{"published":"2026-05-07T22:16:35.047","modified":"2026-10-26T20:10:00.160","status":"Awaiting Analysis","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":6.3},"cwes":["CWE-282"],"references":["https://bugs.launchpad.net/openstack-cyborg/+bug/2144056","https://security.openstack.org/ossa/OSSA-2026-011.html","https://www.openwall.com/lists/oss-security/2026/05/07/6"],"products":[],"source":"nvd","synced_at":"2026-10-26T20:34:58.897451322+00:00"},"epss":{"cve":"CVE-2026-40214","score":0.00206,"percentile":0.10579,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-mmpc-xjxr-5hf8","url":"https://osv.dev/vulnerability/GHSA-mmpc-xjxr-5hf8","summary":"OpenStack Cyborg's Accelerator Request (ARQ) API does not enforce project ownership at any layer","modified":"2026-07-13T16:43:00.625217437Z","packages":[{"ecosystem":"PyPI","name":"openstack-cyborg","purl":"pkg:pypi/openstack-cyborg","ranges":["<16.0.1"],"fixed":["16.0.1"]}]},{"id":"PYSEC-2026-2854","url":"https://osv.dev/vulnerability/PYSEC-2026-2854","summary":"OpenStack Cyborg's Accelerator Request (ARQ) API does not enforce project ownership at any layer","modified":"2026-07-13T16:32:33.835126459Z","packages":[{"ecosystem":"PyPI","name":"openstack-cyborg","purl":"pkg:pypi/openstack-cyborg","ranges":["<16.0.1"],"fixed":["16.0.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}