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 )
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 )
In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
