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FKIE_CVE-2025-15566

Vulnerability from fkie_nvd - Published: 2026-02-06 04:15 - Updated: 2026-06-17 08:38
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-proxy-set-headers` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
References
jordan@liggitt.nethttps://github.com/kubernetes/kubernetes/issues/136789
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "ingress-nginx",
          "repo": "https://github.com/kubernetes/ingress-nginx",
          "vendor": "Kubernetes",
          "versions": [
            {
              "lessThan": "1.12.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.13.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "jordan@liggitt.net"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security issue was discovered in ingress-nginx\u00a0where the `nginx.ingress.kubernetes.io/auth-proxy-set-headers` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)"
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 una vulnerabilidad de seguridad en ingress-nginx donde la anotaci\u00f3n de Ingress \u0027nginx.ingress.kubernetes.io/auth-proxy-set-headers\u0027 puede utilizarse para inyectar configuraci\u00f3n en nginx. Esto puede conducir a la ejecuci\u00f3n de c\u00f3digo arbitrario en el contexto del controlador ingress-nginx y a la divulgaci\u00f3n de Secrets accesibles para el controlador. (Tenga en cuenta que, en la instalaci\u00f3n predeterminada, el controlador puede acceder a todos los Secrets a nivel de cl\u00faster)."
    }
  ],
  "id": "CVE-2025-15566",
  "lastModified": "2026-06-17T08:38:02.510",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "jordan@liggitt.net",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-15566",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-07T04:55:17.151418Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-06T04:15:51.960",
  "references": [
    {
      "source": "jordan@liggitt.net",
      "url": "https://github.com/kubernetes/kubernetes/issues/136789"
    }
  ],
  "sourceIdentifier": "jordan@liggitt.net",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "jordan@liggitt.net",
      "type": "Secondary"
    }
  ]
}



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