CVE-2026-40214

MediumCVSS 6.3/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 6.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-282

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
OpenStack	Cyborg	>= 3.0.0, < 14.0.1; >= 15.0.0, < 15.0.1; >= 16.0.0, < 16.0.1

References

Timeline

Published: May 7, 2026
Last modified: Oct 26, 2026
NVD status: Awaiting Analysis

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