mal-2026-503
Vulnerability from ossf_malicious_packages
Published
2026-01-25 10:04
Modified
2026-01-25 10:04
Summary
Malicious code in test-poc-package-for-session-2 (PyPI)
Details

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

Source: kam193 (0b7003b7bd9585bbb25ce1f957ffef83603883d550f07f77443780a7d47a7f20)

Packages that might be part of testing for pentesting / malicious activity / joy, with suspicious activity that does not present any real harm.


Category: 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.

Campaign: GENERIC-simple-tests

Reasons (based on the campaign):

  • The package overrides the install command in setup.py to execute malicious code during installation.
Credits

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "test-poc-package-for-session-2"
      },
      "versions": [
        "0.0.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "ANALYST"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "pypi/GENERIC-simple-tests/test-poc-package-for-session-2",
        "import_time": "2026-01-25T10:40:49.929057089Z",
        "modified_time": "2026-01-25T10:04:44.820759Z",
        "sha256": "0b7003b7bd9585bbb25ce1f957ffef83603883d550f07f77443780a7d47a7f20",
        "source": "kam193",
        "versions": [
          "0.0.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (0b7003b7bd9585bbb25ce1f957ffef83603883d550f07f77443780a7d47a7f20)\nPackages that might be part of testing for pentesting / malicious activity / joy, with suspicious activity that does not present any real harm.\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 \u0026 co, with clearly low-harm possibilities.\n\n\nCampaign: GENERIC-simple-tests\n\n\nReasons (based on the campaign):\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n",
  "id": "MAL-2026-503",
  "modified": "2026-01-25T10:04:44Z",
  "published": "2026-01-25T10:04:44Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/test-poc-package-for-session-2"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in test-poc-package-for-session-2 (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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