ingress-nginx rewrite-target nginx configuration injection

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-3288",
    "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
    "assignerShortName": "kubernetes",
    "dateUpdated": "2026-03-09T21:08:26.697Z",
    "dateReserved": "2026-02-26T16:47:50.459Z",
    "datePublished": "2026-03-09T21:00:48.196Z",
    "state": "PUBLISHED"
  },
  "containers": {
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      "providerMetadata": {
        "orgId": "a6081bf6-c852-4425-ad4f-a67919267565",
        "shortName": "kubernetes",
        "dateUpdated": "2026-03-09T21:00:48.196Z"
      },
      "datePublic": "2026-03-09T14:00:00.000Z",
      "title": "ingress-nginx rewrite-target nginx configuration injection",
      "descriptions": [
        {
          "lang": "en",
          "value": "A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` 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.)",
          "supportingMedia": [
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              "value": "A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` 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.)"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Kubernetes",
          "product": "ingress-nginx",
          "repo": "https://github.com/kubernetes/ingress-nginx",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.13.8"
            },
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.14.4"
            },
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.15.0"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-20 Improper Input Validation",
              "cweId": "CWE-20",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/kubernetes/kubernetes/issues/137560"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-176",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-176 Configuration/Environment Manipulation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Kai Aizen",
          "type": "finder"
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE",
          "dateUpdated": "2026-03-09T21:08:26.697Z"
        },
        "title": "CVE Program Container",
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/03/09/8"
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}