mal-2026-1433
Vulnerability from ossf_malicious_packages
Published
2026-03-15 09:36
Modified
2026-03-15 09:36
Summary
Malicious code in kvstore-pb2-grpc (PyPI)
Details

-= Per source details. Do not edit below this line.=-

Source: kam193 (7208dedf651be9d1e330692ef042b89e5bcae7e8aeee7f2ab400d49e7a574de8)

During import, package decrypts and runs a malicious executable. The executable is hidden in an encoded and xored form in the JSON resource file.

This is a follow up of the campaign 2026-03-fastapi-middleware-cors


Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-03-ariadne-federation

Reasons (based on the campaign):

  • malware

  • obfuscation

  • dependency-confusion

  • typosquatting

Credits

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "kvstore-pb2-grpc"
      },
      "versions": [
        "16.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-03-ariadne-federation/kvstore-pb2-grpc",
        "import_time": "2026-03-15T10:10:46.362562444Z",
        "modified_time": "2026-03-15T09:36:30.05829Z",
        "sha256": "7208dedf651be9d1e330692ef042b89e5bcae7e8aeee7f2ab400d49e7a574de8",
        "source": "kam193",
        "versions": [
          "16.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (7208dedf651be9d1e330692ef042b89e5bcae7e8aeee7f2ab400d49e7a574de8)\nDuring import, package decrypts and runs a malicious executable. The executable is hidden in an encoded and xored form in the JSON resource file.\n\nThis is a follow up of the campaign 2026-03-fastapi-middleware-cors\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-03-ariadne-federation\n\n\nReasons (based on the campaign):\n\n\n - malware\n\n\n - obfuscation\n\n\n - dependency-confusion\n\n\n - typosquatting\n",
  "id": "MAL-2026-1433",
  "modified": "2026-03-15T09:36:30Z",
  "published": "2026-03-15T09:36:30Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/609d9adb5afe6fb913b605157a86e484f609b939e6755af4311ac6b824e634e2/detection"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/kvstore-pb2-grpc"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in kvstore-pb2-grpc (PyPI)"
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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