CVE-2026-40214
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 3 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 14.0.0-3+deb13u1 |
| sid | Fixed | 16.0.0+git+2026.04.26.b8edfa06f1-1 |
| forky | Fixed | 16.0.0+git+2026.04.26.b8edfa06f1-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | openstack-cyborg | <16.0.1 | 16.0.1 |
| PIP | openstack-cyborg | < 16.0.1 | 16.0.1 |
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
- https://nvd.nist.gov/vuln/detail/CVE-2026-40214
- https://github.com/openstack/cyborg
- https://security-tracker.debian.org/tracker/CVE-2026-40214
- https://github.com/advisories/GHSA-mmpc-xjxr-5hf8
CWEs
CWE-282
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.