ETK-2026-3214Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3214",
  "cve_id": null,
  "display_id": "ETK-2026-3214",
  "ghsa_id": "GHSA-g6qh-g3pq-5cpm",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "HTTPProxy delegated-route boundary bypass in Contour",
  "summary": "Contour HTTPProxy delegation can incorrectly route requests outside a child proxy's assigned path prefix when the child defines an alternation-based regular expression. An attacker able to create a delegated child HTTPProxy may receive traffic intended for another route on the same virtual host.",
  "mitigation": "Upgrade Contour to v1.33.8. Until upgraded, review delegated child HTTPProxies and remove or restrict regular expressions using alternation that could match outside their delegated prefix.",
  "vendor": null,
  "product": "Contour",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= v1.26.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "v1.33.8"
      ],
      "package_name": null,
      "purl": null
    }
  ],
  "cwes": [
    180
  ],
  "cvss_score": 7.4,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 10.5909403,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-31T11:03:56+00:00",
      "days": -0.8887905822569444,
      "is_lower_bound": true,
      "measured_at": "2026-11-01T08:23:47.557267+00:00",
      "url": "https://github.com/projectcontour/contour/security/advisories/GHSA-g6qh-g3pq-5cpm"
    },
    "trigger_signal": {
      "at": "2026-10-31T11:03:56+00:00",
      "days": -0.8887905822569444,
      "is_lower_bound": true,
      "measured_at": "2026-11-01T08:23:47.557267+00:00",
      "url": "https://github.com/projectcontour/contour/security/advisories/GHSA-g6qh-g3pq-5cpm"
    }
  }
}