{
  "affected": [
    {
      "database_specific": {
        "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/msgpackrpc/MAL-2026-18627.json"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "msgpackrpc",
        "purl": "pkg:pypi/msgpackrpc"
      },
      "versions": [
        "0.0.0",
        "0.1.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Mańkowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "pypi/GENERIC-standard-pypi-install-pentest/msgpackrpc",
        "import_time": "2026-11-04T16:37:36.802736375Z",
        "modified_time": "2026-11-04T16:11:42.068096Z",
        "sha256": "9747a902bd61a745ec9c8f569f57417303f828b441c3e4e8c95101adf1498d13",
        "source": "kam193",
        "versions": [
          "0.0.0",
          "0.1.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (9747a902bd61a745ec9c8f569f57417303f828b441c3e4e8c95101adf1498d13)\nInstalling the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.\n\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.\n\n\nCampaign: GENERIC-standard-pypi-install-pentest\n\n\nReasons (based on the campaign):\n\n\n - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n",
  "id": "MAL-2026-18627",
  "modified": "2026-11-04T16:45:04.332052887Z",
  "published": "2026-11-04T16:11:42Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/msgpackrpc"
    }
  ],
  "schema_version": "1.9.2",
  "summary": "Malicious code in msgpackrpc (PyPI)"
}