Authorization Flaw in OpenStack Cyborg by OpenStack
CVE-2026-40213

7.4HIGH

Key Information:

Vendor

Openstack

Status
Vendor
CVE Published:
7 May 2026

What is CVE-2026-40213?

OpenStack Cyborg, prior to version 16.0.1, is prone to an authorization vulnerability due to its default policy configuration allowing unrestricted access to multiple API endpoints. This security oversight permits any authenticated user with a valid Keystone token to execute actions without appropriate role permissions, including the capacity to reprogram FPGA bitstreams on any compute node. The flaw arises from a default allowance for requests that compromises the integrity and security of the service.

Affected Version(s)

Cyborg 5.0.0 < 14.0.1

Cyborg 15.0.0 < 15.0.1

Cyborg 16.0.0 < 16.0.1

References

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.