---
id: CVE-2026-103002
title: >-
  GPUStack: Missing authorization on several cluster and resource endpoints
  allows cross-user access and cluster takeover
summary: >-
  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 w…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-639
  - CWE-862
vendor: gpustack
product: gpustack
affected:
  - 'gpustack >= 2.2.0, < 2.2.2'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-05T00:00:00+00:00'
published: '2026-11-04'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T04:56:42.836Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-103002'
references:
  - url: >-
      https://github.com/gpustack/gpustack/security/advisories/GHSA-3hch-x692-6qj3
    label: >-
      https://github.com/gpustack/gpustack/security/advisories/GHSA-3hch-x692-6qj3
  - url: 'https://github.com/gpustack/gpustack/pull/5911'
    label: 'https://github.com/gpustack/gpustack/pull/5911'
  - url: 'https://github.com/gpustack/gpustack/pull/5936'
    label: 'https://github.com/gpustack/gpustack/pull/5936'
  - url: >-
      https://github.com/gpustack/gpustack/commit/363191fa1da7e1426c6041f78b3cf00aff2622fe
    label: >-
      https://github.com/gpustack/gpustack/commit/363191fa1da7e1426c6041f78b3cf00aff2622fe
  - url: >-
      https://github.com/gpustack/gpustack/commit/cdd67467e0f314609dc82216e142940d321abfed
    label: >-
      https://github.com/gpustack/gpustack/commit/cdd67467e0f314609dc82216e142940d321abfed
  - url: 'https://github.com/gpustack/gpustack/releases/tag/v2.2.2'
    label: 'https://github.com/gpustack/gpustack/releases/tag/v2.2.2'
tags:
  - cve.org
epss: 0.0036
epssPercentile: 0.29984
ingestedAt: '2026-11-05T21:36:00.620Z'
---

## Overview

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.

## Affected

- `gpustack >= 2.2.0, < 2.2.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.