OpenStack Cyborg up to 14.0.0/15.0.0/16.0.0 API Endpoint authorization

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in OpenStack Cyborg up to 14.0.0/15.0.0/16.0.0. This issue affects some unknown processing of the component API Endpoint. Such manipulation leads to authorization. This vulnerability is referenced as CVE-2026-40213. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in OpenStack Cyborg up to 14.0.0/15.0.0/16.0.0. It has been rated as critical. Affected by this issue is an unknown function of the component API Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. Impacted is confidentiality, integrity, and availability. CVE summarizes:

OpenStack Cyborg before 16.0.1 uses rule:allow (check_str='@') as the default policy for multiple API endpoints. This unconditionally authorizes any request carrying a valid Keystone token regardless of roles, project membership, or scope. An authenticated user with zero role assignments can complete various actions such as reprogramming FPGA bitstreams on arbitrary compute nodes via agent RPC.

The advisory is available at bugs.launchpad.net. This vulnerability is handled as CVE-2026-40213 since 04/10/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not 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). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.4
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 318079
Nessus Name: Debian dsa-6315 : cyborg-agent - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Cyborg 14.0.1/15.0.1/16.0.1

Timelineinfo

04/10/2026 CVE reserved
05/08/2026 +28 days Advisory disclosed
05/08/2026 +0 days VulDB entry created
06/01/2026 +24 days VulDB entry last update

Sourcesinfo

Vendor: openstack.org

Advisory: bugs.launchpad.net
Status: Confirmed

CVE: CVE-2026-40213 (🔒)
GCVE (CVE): GCVE-0-2026-40213
GCVE (VulDB): GCVE-100-361970

Entryinfo

Created: 05/08/2026 05:51
Updated: 06/01/2026 23:24
Changes: 05/08/2026 05:51 (64), 06/01/2026 23:24 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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