Vulnerability in gpustack

[ Description ]Official description

GPUStack is an open-source GPU cluster manager for AI model serving and GPU instance provisioning. From 2.2.0 until 2.2.2, cluster_apiserver_proxy forwarded an authenticated non-administrator's requests to a selected Kubernetes cluster without a resource-level authorization check. The proxy used a reachable worker's Kubernetes ServiceAccount credentials, so the caller could read sensitive resources, create or modify workloads, or delete resources according to that ServiceAccount's permissions. Exploitation required a Kubernetes-provider cluster with a reachable worker, and attacker-controlled workloads could result in code execution in the target cluster. This issue is fixed in version 2.2.2.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/gpustack/gpustack/commit/363191fa1da7e1426c6041f78b3cf00aff2622fe
• github.com/gpustack/gpustack/commit/cdd67467e0f314609dc82216e142940d321abfed
• github.com/gpustack/gpustack/pull/5911
• github.com/gpustack/gpustack/pull/5936
• github.com/gpustack/gpustack/releases/tag/v2.2.2
• github.com/gpustack/gpustack/security/advisories/GHSA-3hch-x692-6qj3