VDB
CVE-2026-40214
CVE-2026-40214
PUBLISHED
CVSS 6.300000190734863 MEDIUM
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.
EPSS 0.21% · 11.1th percentile
Risk Scores
CVSS 3.1
6.300000190734863
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score
0.21%
11.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| OpenStack | Cyborg | 15.0.0, 16.0.0, 3.0.0 |
Timeline
- May 7, 2026 CVE Published
- May 7, 2026 PoC Published
- May 8, 2026 Security Advisory
- May 8, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score