CVE-2026-114638

{
  "etk_id": "ETK-2026-2391",
  "cve_id": "CVE-2026-114638",
  "display_id": "CVE-2026-114638",
  "ghsa_id": "GHSA-378g-rwj7-qp6j",
  "euvd_id": "EUVD-2026-107893",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Client certificate authentication bypass in Traefik Kubernetes Ingress",
  "summary": "Traefik 3.7.0 through 3.7.13 using the Kubernetes Ingress NGINX provider can apply the wrong client CA to an Ingress host. An attacker with a client certificate trusted by a different affected host may authenticate to that host when the relevant TLS secret names collide after name normalization.",
  "mitigation": "Upgrade Traefik to version 3.7.14 or later. Until upgraded, identify and rename client-CA TLS secrets whose names could collide when dots are converted to dashes.",
  "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": 37.88537045,
  "t0_at": "2026-10-22T01:43:38.571000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-22T01:43:38.571000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T01:43:38.571000+00:00",
      "url": "https://github.com/advisories/GHSA-378g-rwj7-qp6j"
    }
  }
}