CVE-2026-103002GPUStack: Missing authorization on several cluster and resource endpoints allows cross-user access and cluster takeover

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

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