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.
Problem types
CWE-282 Improper Ownership Management
Product status
3.0.0 (semver) before 14.0.1
15.0.0 (semver) before 15.0.1
16.0.0 (semver) before 16.0.1
References
bugs.launchpad.net/openstack-cyborg/+bug/2144056
www.openwall.com/lists/oss-security/2026/05/07/6