ETK-2026-3144Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3144",
  "cve_id": null,
  "display_id": "ETK-2026-3144",
  "ghsa_id": "GHSA-7vx4-vvv8-hr5x",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Authorization and domain verification flaws in postrust-proxy",
  "summary": "Applications embedding postrust-proxy's saas_router are affected by authorization and domain-verification flaws. A tenant with an API key may gain broader access within its tenant, access internal services through domain verification, or interfere with domain and certificate handling; exploitation requires access to the embedded multi-tenant API.",
  "mitigation": "Upgrade postrust-proxy to version 1.0.0. Until upgraded, disable or restrict access to saas_router and its domain-verification and certificate-upload functions.",
  "vendor": "rust",
  "product": "rust:postrust-proxy",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.0.0"
      ],
      "ecosystem": "rust",
      "fixed_versions": [
        "1.0.0"
      ],
      "package_name": "postrust-proxy",
      "purl": "pkg:cargo/postrust-proxy"
    }
  ],
  "cwes": [
    178
  ],
  "cvss_score": 8.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 14.686544716666667,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-30T19:03:54+00:00",
      "days": -0.6001402561111111,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T09:28:06.195374+00:00",
      "url": "https://github.com/postrust/postrust/security/advisories/GHSA-7vx4-vvv8-hr5x"
    },
    "trigger_signal": {
      "at": "2026-10-30T19:03:54+00:00",
      "days": -0.6001402561111111,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T09:28:06.195374+00:00",
      "url": "https://github.com/postrust/postrust/security/advisories/GHSA-7vx4-vvv8-hr5x"
    }
  }
}