ETK-2026-4189Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-4189",
  "cve_id": null,
  "display_id": "ETK-2026-4189",
  "ghsa_id": "GHSA-9vwx-hfm8-g59g",
  "euvd_id": null,
  "status": "in_pipeline",
  "anchor_state": "awaiting_cve",
  "title": "Authorization bypass in GPUStack service credentials",
  "summary": "GPUStack versions 2.2.0 through 2.3.0 do not consistently confine cluster and worker service credentials to their intended authorization scope. An attacker with network access to the management API and a valid registration token or worker credential may access management functions for other clusters, including changing infrastructure settings or obtaining registration tokens.",
  "mitigation": "Upgrade GPUStack to version 2.3.1. Until then, limit management API access to trusted hosts, protect service credentials, and rotate credentials that may have been exposed.",
  "vendor": null,
  "product": "pip:gpustack",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.2.0, < 2.3.1"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "2.3.1"
      ],
      "package_name": "gpustack",
      "purl": "pkg:pypi/gpustack"
    }
  ],
  "cwes": [
    284
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": null,
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": null,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-11-11T16:22:53+00:00",
      "days": -0.024820872118055556,
      "is_lower_bound": true,
      "measured_at": "2026-11-11T16:58:37.566466+00:00",
      "url": "https://github.com/gpustack/gpustack/security/advisories/GHSA-9vwx-hfm8-g59g"
    }
  }
}