ETK-2026-3142Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3142",
  "cve_id": null,
  "display_id": "ETK-2026-3142",
  "ghsa_id": "GHSA-jcgv-7262-j5p6",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Connection exhaustion and route-policy bypasses in postrust-proxy",
  "summary": "postrust-proxy versions before 1.0.0 can leave unauthenticated connections open until file descriptors are exhausted. Attackers able to reach a proxy listener may also bypass route restrictions where backends support protocol upgrades or normalize paths; backends that trust client-supplied forwarding headers may accept spoofed source addresses. Rate-limit behavior can also cause persistent client lockouts or weaken limits across routes.",
  "mitigation": "Upgrade postrust-proxy to version 1.0.0. Until upgraded, restrict listener access to trusted networks and ensure backends do not trust client-provided forwarding headers or rely solely on proxy route restrictions.",
  "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": [
    22
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 15.242233516666667,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-31T05:14:41.954976+00:00",
      "days": -0.17759706476851853,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T09:30:26.969284+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-30T19:03:43+00:00",
      "days": -0.6018905251388889,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T09:30:26.969284+00:00",
      "url": "https://github.com/postrust/postrust/security/advisories/GHSA-jcgv-7262-j5p6"
    },
    "trigger_signal": {
      "at": "2026-10-30T19:03:43+00:00",
      "days": -0.6018905251388889,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T09:30:26.969284+00:00",
      "url": "https://github.com/postrust/postrust/security/advisories/GHSA-jcgv-7262-j5p6"
    }
  }
}