Security advisory

{
  "id": "4927aaa9cccd73ec1296425a58a93ed4812594efb73234699494a4a6d39f4aa1",
  "url": "https://osv.dev/vulnerability/CVE-2019-12494",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-12494",
    "summary": "In Gardener before 0.20.0, incorrect access control in seed clusters allows information disclosure by sending HTTP GET requests from one's own shoot clusters to foreign shoot clusters. This occurs because traffic from shoot to seed via the VPN endpoint is not blocked.",
    "evidence": "osv:CVE-2019-12494",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-12494",
      "aliases": [
        "CVE-2019-12494"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gardener/gardener",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "93b715ee5b3e6eca8c2b46a7431b4cb3bbc75980"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gardener:gardener:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.20.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.19.0",
            "0.18.0",
            "0.17.0",
            "0.16.0",
            "0.15.0",
            "0.14.0",
            "0.13.0",
            "0.12.0",
            "0.11.0",
            "0.10.0",
            "0.9.0",
            "0.8.0",
            "0.7.0",
            "0.6.0",
            "0.5.0",
            "0.4.0",
            "0.3.0",
            "0.2.0",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12494.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:36.588841656Z",
      "provider": "osv",
      "references": [
        "https://groups.google.com/forum/#%21topic/gardener/pH6dNIEhv-A",
        "https://github.com/gardener/vpn/issues/40",
        "https://github.com/gardener/gardener/pull/874"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-12494",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382638,
  "published_at": "2019-06-05T19:29:00.233+00:00"
}