cyborg: In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer
CVE-2026-40214 is fixed in 6 products on 1 platform, first by cyborg-agent 14.0.0-3+deb13u1build0.25.10.1, released May 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| cyborg · Debian 13.5 (trixie) | 14.0.0-3+deb13u1 | DEBIAN-CVE-2026-40214 | May 27, 2026 |
| cyborg · Debian 14 | 16.0.0+git+2026.04.26.b8edfa06f1-1 | DEBIAN-CVE-2026-40214 | May 27, 2026 |
| cyborg-agent · Ubuntu 25.10 (questing) | 14.0.0-3+deb13u1build0.25.10.1 | cyborg-agent 14.0.0-3+deb13u1build0.25.10.1 | May 7, 2026 |
| cyborg-agent · Ubuntu 26.04.1 LTS (resolute) | 16.0.0-2ubuntu0.1 | cyborg-agent 16.0.0-2ubuntu0.1 | May 7, 2026 |
| cyborg-api · Ubuntu 25.10 (questing) | 14.0.0-3+deb13u1build0.25.10.1 | cyborg-api 14.0.0-3+deb13u1build0.25.10.1 | May 7, 2026 |
| cyborg-api · Ubuntu 26.04.1 LTS (resolute) | 16.0.0-2ubuntu0.1 | cyborg-api 16.0.0-2ubuntu0.1 | May 7, 2026 |
| cyborg-common · Ubuntu 25.10 (questing) | 14.0.0-3+deb13u1build0.25.10.1 | cyborg-common 14.0.0-3+deb13u1build0.25.10.1 | May 7, 2026 |
| cyborg-common · Ubuntu 26.04.1 LTS (resolute) | 16.0.0-2ubuntu0.1 | cyborg-common 16.0.0-2ubuntu0.1 | May 7, 2026 |
| cyborg-conductor · Ubuntu 25.10 (questing) | 14.0.0-3+deb13u1build0.25.10.1 | cyborg-conductor 14.0.0-3+deb13u1build0.25.10.1 | May 7, 2026 |
| cyborg-conductor · Ubuntu 26.04.1 LTS (resolute) | 16.0.0-2ubuntu0.1 | cyborg-conductor 16.0.0-2ubuntu0.1 | May 7, 2026 |
| python3-cyborg · Ubuntu 25.10 (questing) | 14.0.0-3+deb13u1build0.25.10.1 | python3-cyborg 14.0.0-3+deb13u1build0.25.10.1 | May 7, 2026 |
| python3-cyborg · Ubuntu 26.04.1 LTS (resolute) | 16.0.0-2ubuntu0.1 | python3-cyborg 16.0.0-2ubuntu0.1 | May 7, 2026 |
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