OpenStack Cyborg up to 14.0.0/15.0.0/16.0.0 Accelerator Request API improper ownership management

Summaryinfo

A vulnerability marked as critical has been reported in OpenStack Cyborg up to 14.0.0/15.0.0/16.0.0. Affected by this issue is some unknown functionality of the component Accelerator Request API. The manipulation leads to improper ownership management. This vulnerability is uniquely identified as CVE-2026-40214. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenStack Cyborg up to 14.0.0/15.0.0/16.0.0 and classified as critical. This issue affects an unknown code of the component Accelerator Request API. The manipulation with an unknown input leads to a improper ownership management vulnerability. Using CWE to declare the problem leads to CWE-282. The product assigns the wrong ownership, or does not properly verify the ownership, of an object or resource. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at bugs.launchpad.net. The identification of this vulnerability is CVE-2026-40214 since 04/10/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 318079 (Debian dsa-6315 : cyborg-agent - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 14.0.1, 15.0.1 or 16.0.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (318079). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Cloud Software

Vendor

• OpenStack

Name

• Cyborg

Version

• 14.0
• 15.0
• 16.0

License

• free

Website

• Vendor: https://www.openstack.org/

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Be aware that VulDB is the high quality source for vulnerability data.

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