{"affected":[{"product":"gpustack","source":"CNA: GitHub_M","vendor":"gpustack","versions":[{"status":"affected","version":">= 2.2.0, < 2.2.2"}]}],"cveId":"CVE-2026-103002","cwes":["CWE-639","CWE-862"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.8,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793828021176,"publishedAt":1793828021176,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gpustack/gpustack/security/advisories/GHSA-3hch-x692-6qj3"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/gpustack/gpustack/pull/5911"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/gpustack/gpustack/pull/5936"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/gpustack/gpustack/commit/363191fa1da7e1426c6041f78b3cf00aff2622fe"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/gpustack/gpustack/commit/cdd67467e0f314609dc82216e142940d321abfed"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/gpustack/gpustack/releases/tag/v2.2.2"}],"remediation":[],"revision":"40a7264c62179c1b45cec31f2f6e2e4fddeeea6654a7c06b28bb31db35dc1907","sources":[{"modifiedAt":1793828021176,"name":"CNA: GitHub_M","retrievedAt":1793830276265,"url":"https://www.cve.org/CVERecord?id=CVE-2026-103002"}],"ssvc":null,"status":"published","title":"GPUStack: Missing authorization on several cluster and resource endpoints allows cross-user access and cluster takeover","updatedAt":1793830276265}