CVE-2026-114640

{
  "etk_id": "ETK-2026-2389",
  "cve_id": "CVE-2026-114640",
  "display_id": "CVE-2026-114640",
  "ghsa_id": "GHSA-wwwm-2fq8-c2gm",
  "euvd_id": "EUVD-2026-107895",
  "status": "published",
  "anchor_state": "anchored",
  "title": "mTLS identity spoofing authentication bypass in Traefik",
  "summary": "Traefik 3.7.0 through 3.7.13 is affected in the Kubernetes Ingress-NGINX provider. An unauthenticated remote attacker may impersonate an mTLS-authenticated identity by supplying client-certificate identity headers. Exposure requires an HTTP route without SSL redirection and the option to pass client certificate data to upstream services enabled.",
  "mitigation": "Upgrade Traefik to version 3.7.14 or later. Until upgraded, enable SSL redirection and disable passing client TLS certificate information to upstream services on affected routes.",
  "vendor": "traefik",
  "product": "traefik",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.7.0, < 3.7.14"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "3.7.14"
      ],
      "package_name": "traefik",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 13.38731965,
  "t0_at": "2026-10-22T01:43:39.899000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-22T01:43:39.899000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T01:43:39.899000+00:00",
      "url": "https://github.com/advisories/GHSA-wwwm-2fq8-c2gm"
    }
  }
}