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CVE-2026-40213 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://bugs.launchpad.net/openstack-cyborg/+bug/2143263 MITRE
https://security.openstack.org/ossa/OSSA-2026-011.html MITRE
https://www.openwall.com/lists/oss-security/2026/05/07/6 MITRE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization MITRE  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-40213
NVD Published Date:
05/07/2026
NVD Last Modified:
05/08/2026
Source:
MITRE