Security advisory

{
  "id": "9077cef1783b0b52ca530cbf5ee6ea4dca230929d343e69e0857fed4f9feee10",
  "url": "https://osv.dev/vulnerability/CVE-2017-1000209",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-1000209",
    "summary": "The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.",
    "evidence": "osv:CVE-2017-1000209",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-1000209",
      "aliases": [
        "CVE-2017-1000209",
        "GHSA-4hxv-95rc-jqg7"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/takahikokawasaki/nv-websocket-client",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "fc6d9fb4d5f64b09e3760345d6245f811150c205"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nv-websocket-client_project:nv-websocket-client:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "nv-websocket-client-2.2",
            "nv-websocket-client-2.1",
            "nv-websocket-client-2.0",
            "nv-websocket-client-1.31",
            "nv-websocket-client-1.30",
            "nv-websocket-client-1.29",
            "nv-websocket-client-1.28",
            "nv-websocket-client-1.27",
            "nv-websocket-client-1.26",
            "nv-websocket-client-1.25",
            "nv-websocket-client-1.24",
            "nv-websocket-client-1.23",
            "nv-websocket-client-1.22",
            "nv-websocket-client-1.21",
            "nv-websocket-client-1.20",
            "nv-websocket-client-1.19",
            "nv-websocket-client-1.18",
            "nv-websocket-client-1.17",
            "nv-websocket-client-1.16",
            "nv-websocket-client-1.15",
            "nv-websocket-client-1.14",
            "nv-websocket-client-1.13",
            "nv-websocket-client-1.12",
            "nv-websocket-client-1.11",
            "nv-websocket-client-1.10",
            "nv-websocket-client-1.9",
            "nv-websocket-client-1.8",
            "nv-websocket-client-1.7",
            "nv-websocket-client-1.6",
            "nv-websocket-client-1.5",
            "nv-websocket-client-1.4",
            "nv-websocket-client-1.3",
            "nv-websocket-client-1.2",
            "nv-websocket-client-1.1",
            "nv-websocket-client-1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-1000209.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:50.774708396Z",
      "provider": "osv",
      "references": [
        "https://github.com/TakahikoKawasaki/nv-websocket-client/pull/107"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-1000209",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380856,
  "published_at": "2017-11-17T02:29:01.097+00:00"
}