USN-8413-1: Cyborg vulnerabilities

Publication date

9 June 2026

Overview

Several security issues were fixed in Cyborg.


Packages

  • cyborg - OpenStack Acceleration as a Service

Details

It was discovered that Cyborg did not properly enforce project ownership in
the Accelerator Request (ARQ) API. An authenticated user could possibly use
this issue to delete ARQs bound to other projects' instances, resulting in
a cross-tenant denial of service. (CVE-2026-40214)

It was discovered that Cyborg used a permissive default policy that
authorized any request carrying a valid authentication token, regardless of
roles or scope, for multiple API endpoints. An authenticated user could
possibly use this issue to perform unauthorized actions, such as
reprogramming FPGA bitstreams on arbitrary compute nodes. (CVE-2026-40213)

It was discovered that Cyborg did not properly enforce project ownership in
the Accelerator Request (ARQ) API. An authenticated user could possibly use
this issue to delete ARQs bound to other projects' instances, resulting in
a cross-tenant denial of service. (CVE-2026-40214)

It was discovered that Cyborg used a permissive default policy that
authorized any request carrying a valid authentication token, regardless of
roles or scope, for multiple API endpoints. An authenticated user could
possibly use this issue to perform unauthorized actions, such as
reprogramming FPGA bitstreams on arbitrary compute nodes. (CVE-2026-40213)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:


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