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CVE-2026-40213

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CVE-2026-40213

Published: May 7, 2026

Modified: May 8, 2026

PUBLISHED

CVSS v3.1

7.4

HIGH

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.

VendorProductVersions

OpenStack

Cyborg

affected
5.0.0 - < 14.0.1
affected
15.0.0 - < 15.0.1
affected
16.0.0 - < 16.0.1

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

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