{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          },
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "scripts/preinstall.js",
              "sha256": "4275061552723f1d31253e74f931ebac93d9f83b772b3c68a53374c1b4c9dd68",
              "tlsh": "6d01f9f7636553f04fc2cd96854eb58b5317a12a7502bca87cbd0a563b49c0c13f22d5"
            }
          ],
          "package_integrity": [
            {
              "filename": "authentication-3.1.1.tgz",
              "hashes": {
                "sha1": "44067ec030eebbba06bd7a44b468c93e7de2043a",
                "sha512_sri": "sha512-iC++nNmO2hZrlxPYyQeaHfHVVxhoedoDFYH+AHxPa2bljcoZT8Yn74EUFBEPhyMtJh7SVxWmAP2VLniLs+t30Q=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "@cats-cdf/authentication"
      },
      "versions": [
        "3.1.1",
        "2.17.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-016849",
        "import_time": "2026-08-07T00:59:21.583891527Z",
        "modified_time": "2026-08-06T23:55:43Z",
        "sha256": "404569337a1e5fc46fff2584e052d2f9f99c3cb8d04e5fb3b5c5d633c178e01c",
        "source": "amazon-inspector",
        "versions": [
          "3.1.1"
        ]
      },
      {
        "id": "IN-MAL-2026-016847",
        "import_time": "2026-08-07T00:59:21.366232668Z",
        "modified_time": "2026-08-06T23:55:20Z",
        "sha256": "c38c7998a850ceb03e1e9795f5e815bc564a1db2d77bdffb77d22bf9ef2dd608",
        "source": "amazon-inspector",
        "versions": [
          "2.17.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (404569337a1e5fc46fff2584e052d2f9f99c3cb8d04e5fb3b5c5d633c178e01c)\nThe package\u0027s preinstall lifecycle script runs on npm install and collects the installer\u0027s local username (whoami), hostname, and public IP address (fetched via ifconfig.me), then transmits them as query-string parameters in an HTTP GET request to a hardcoded subdomain of oast.fun (kwphewvexhjbtfduscqybx6q7c862eh0g.oast.fun). oast.fun is an out-of-band interaction/callback service commonly used for reconnaissance and exfiltration in dependency-confusion attacks. The behavior fires automatically on default install with no relation to any documented package purpose.\n",
  "id": "MAL-2026-13478",
  "modified": "2026-08-07T01:01:07Z",
  "published": "2026-08-06T23:55:20Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/@cats-cdf/authentication/v/3.1.1"
    },
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/@cats-cdf/authentication/v/2.17.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in @cats-cdf/authentication (npm)"
}