CVE-2020-15129

Estado: ModificadaMedia (4.7)—💥 Exploit

In Traefik before versions 1.7.26, 2.2.8, and 2.3.0-rc3, there exists a potential open redirect vulnerability in Traefik's handling of the "X-Forwarded-Prefix" header. The Traefik API dashboard component doesn't validate that the value of the header "X-Forwarded-Prefix" is a site relative path and will redirect to any header provided URI. Successful exploitation of an open redirect can be used to entice victims to disclose sensitive information. Active Exploitation of this issue is unlikely as it would require active header injection, however the Traefik team addressed this issue nonetheless to prevent abuse in e.g. cache poisoning scenarios.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Puntuación base: 4.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 8.01%
Percentil entre todas las CVEs puntuadas: 95
Fecha de la puntuación: 7/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Plantilla de Nuclei (detección automática y masiva) · Traefik - Open Redirect

Tecnologías afectadas (1)

Traefik — Traefik

CWE

CWE-601
CWE-601

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2020-15129",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
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          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
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        "exploitabilityScore": 1.6
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  "published": "2020-07-30T16:15:11.537",
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  "descriptions": [
    {
      "lang": "en",
      "value": "In Traefik before versions 1.7.26, 2.2.8, and 2.3.0-rc3, there exists a potential open redirect vulnerability in Traefik's handling of the \"X-Forwarded-Prefix\" header. The Traefik API dashboard component doesn't validate that the value of the header \"X-Forwarded-Prefix\" is a site relative path and will redirect to any header provided URI. Successful exploitation of an open redirect can be used to entice victims to disclose sensitive information. Active Exploitation of this issue is unlikely as it would require active header injection, however the Traefik team addressed this issue nonetheless to prevent abuse in e.g. cache poisoning scenarios."
    },
    {
      "lang": "es",
      "value": "En Traefik antes de las versiones 1.7.26, 2.2.8 y 2.3.0-rc3, se presenta una posible vulnerabilidad de redireccionamiento abierto en el manejo del encabezado \"X-Forwarded-Prefix\" de Traefik. El componente del panel de la API Traefik no comprueba que el valor del encabezado \"X-Forwarded-Prefix\" sea una ruta relativa al sitio y redireccionará a cualquier URI proporcionado por el encabezado. Una explotación con éxito de un redireccionamiento abierto puede ser utilizado para atraer a las víctimas a revelar información confidencial. Una explotación activa de este problema es poco probable ya que requeriría una inyección activa del encabezado, sin embargo, el equipo de Traefik abordó este problema para impedir el abuso en por ejemplo escenarios de envenenamiento de caché"
    }
  ],
  "lastModified": "2026-06-17T02:56:06.487",
  "configurations": [
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      "nodes": [
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