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7.4 High

CVE-2026-40213 OpenStack Cyborg before 16.0.1 uses rule:allow (check_str='@') as the default policy for multiple API endpoints

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.

Affected products and versions

Product Affected versions Fixed in
Cyborg 16.0 16.0.0 → < 16.0.1 16.0.1
Cyborg 15.0 15.0.0 → < 15.0.1 15.0.1
Cyborg 5.0 5.0.0 → < 14.0.1 14.0.1

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Cyborg

The 2 CVEs of Cyborg →
CVE-2026-40214 In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer 6.3 Medium
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