ingress-nginx auth-proxy-set-headers nginx configuration injection_CVE-2025-15566

{
    "lastseen": "",
    "description": "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.)",
    "published": "2026-02-06T03:13:51.717Z",
    "modified": "2026-02-06T03:13:51.717Z",
    "type": "cve",
    "title": "ingress-nginx auth-proxy-set-headers nginx configuration injection",
    "source": "kubernetes",
    "references": "https://github.com/kubernetes/kubernetes/issues/136789",
    "id": "CVE-2025-15566",
    "bulletinFamily": "",
    "cwe": [
        "CWE-20"
    ],
    "cvelist": null,
    "sourceData": "Kubernetes ingress-nginx 0\nKubernetes ingress-nginx 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "ingress-nginx",
    "version": "0",
    "vendor": "Kubernetes",
    "ai_description": "Arbitrary code execution and disclosure of Secrets via ingress-nginx controller configuration injection",
    "ai_severity": "High",
    "ai_vendor": "Kubernetes",
    "ai_product": "ingress-nginx",
    "ai_version": "0",
    "ai_score": 8.8
}