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ingress-nginx controller - configuration injection via unsanitized mirror annotations

Type: advisorySources: OSV

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `mirror-target` and `mirror-host` Ingress annotations can be used to inject arbitrary 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.)

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-1098
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 01:44 UTC · Revision 1

Source evidence

ingress-nginx controller - configuration injection via unsanitized mirror annotations

core-osv · Original source

Published 24 Mar 2025, 23:29 UTC

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `mirror-target` and `mirror-host` Ingress annotations can be used to inject arbitrary 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.)

osv:CVE-2025-1098
Complete source record
{
  "id": "7b9d7c969142d3c3ca53668511f7e42db117810dcc8ec2f1bfeaa939358a48fa",
  "url": "https://osv.dev/vulnerability/CVE-2025-1098",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ingress-nginx controller - configuration injection via unsanitized mirror annotations",
    "summary": "A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `mirror-target` and `mirror-host` Ingress annotations can be used to inject arbitrary 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.)",
    "evidence": "osv:CVE-2025-1098",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-1098",
      "aliases": [
        "CVE-2025-1098",
        "GHSA-vg63-w3p9-jc9m",
        "GO-2025-3568"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kubernetes/ingress-nginx",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
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                {
                  "last_affected": "9effe56075b11c8123098ccde010b348293737d5"
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                {
                  "introduced": "8ee4384271e081578bb8f08eccf2f3b5a78ada25"
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                  "last_affected": "8ee4384271e081578bb8f08eccf2f3b5a78ada25"
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              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
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                      {
                        "last_affected": "1.11.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
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                        "introduced": "1.12.0"
                      },
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                        "last_affected": "1.12.0"
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                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1098.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.424011575Z",
      "provider": "osv",
      "references": [
        "https://www.exploit-db.com/exploits/52475",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1098.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-1098",
        "https://security.netapp.com/advisory/ntap-20250328-0008/",
        "https://github.com/kubernetes/kubernetes/issues/131008",
        "https://github.com/kubernetes/ingress-nginx"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-20"
        ],
        "cna_assigner": "kubernetes",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1098.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-1098",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499470,
  "published_at": "2025-03-24T23:29:15.61+00:00"
}