ETK-2026-2656Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-2656",
  "cve_id": null,
  "display_id": "ETK-2026-2656",
  "ghsa_id": "GHSA-8v48-xmww-6wmm",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Authorization bypass in GPUStack WebSocket proxy registration",
  "summary": "GPUStack versions before 2.3.0 inadequately restrict registered workers when they register WebSocket proxy routes. An attacker with registered-worker credentials and access to the proxy endpoint may obtain route metadata and redirect or disrupt matching proxied connections.",
  "mitigation": "Upgrade gpustack to version 2.3.0 or later. Until upgraded, limit worker registration to trusted operators, revoke untrusted or compromised worker credentials, and use verified end-to-end TLS for sensitive proxied traffic.",
  "vendor": "pip",
  "product": "pip:gpustack",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.2.0, < 2.3.0"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "2.3.0"
      ],
      "package_name": "gpustack",
      "purl": "pkg:pypi/gpustack"
    }
  ],
  "cwes": [
    78
  ],
  "cvss_score": 8.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 35.85236763333333,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-10-26T01:37:24+00:00",
      "days": -0.6997258977777778,
      "is_lower_bound": true,
      "measured_at": "2026-10-26T18:25:00.344596+00:00",
      "url": "https://github.com/gpustack/gpustack/security/advisories/GHSA-8v48-xmww-6wmm"
    }
  }
}