{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.12.5"
              },
              {
                "fixed": "1.13.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "dcc3288f7c1755b9cfb5eedf97107e5a0f185d3b"
            },
            {
              "fixed": "3bb5d0c12e6146dac70cc0c4d70740cf2f1d010e"
            }
          ],
          "repo": "https://github.com/kubernetes/ingress-nginx",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "kubernetes",
    "cwe_ids": [
      "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15566.json"
  },
  "details": "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.)",
  "id": "CVE-2025-15566",
  "modified": "2026-07-15T01:49:22.210776443Z",
  "published": "2026-02-06T03:13:51.717Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15566.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15566"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/kubernetes/kubernetes/issues/136789"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kubernetes/ingress-nginx"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ingress-nginx auth-proxy-set-headers nginx configuration injection"
}