mal-2026-3354
Vulnerability from ossf_malicious_packages
Published
2026-05-06 13:46
Modified
2026-05-06 20:59
Summary
Malicious code in playwright-acustomed (PyPI)
Details

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

Source: kam193 (b8b21055de687ebac89fc9e5697c34b70cc910702d263b841399783f75b139bd)

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.


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-standard-pypi-install-pentest

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

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

Credits

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "playwright-acustomed"
      },
      "versions": [
        "0.1.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "iocs": {
      "domains": [
        "contabo.e-kounoupidi.gr"
      ],
      "urls": [
        "https://contabo.e-kounoupidi.gr/gotcha",
        "https://contabo.e-kounoupidi.gr/gotchawebhook"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/GENERIC-standard-pypi-install-pentest/playwright-acustomed",
        "import_time": "2026-05-06T14:18:18.699932362Z",
        "modified_time": "2026-05-06T13:47:02.138683Z",
        "sha256": "b8b21055de687ebac89fc9e5697c34b70cc910702d263b841399783f75b139bd",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      },
      {
        "id": "pypi/2026-05-playwright-acustomed/playwright-acustomed",
        "import_time": "2026-05-06T20:57:19.780452909Z",
        "modified_time": "2026-05-06T20:06:44.31241Z",
        "sha256": "fe1360882db5299cd1267cfcbc1ffedee55294d23762047f190237f4a539f25d",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (b8b21055de687ebac89fc9e5697c34b70cc910702d263b841399783f75b139bd)\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 \u0026 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-2026-3354",
  "modified": "2026-05-06T20:59:10Z",
  "published": "2026-05-06T13:46:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/playwright-acustomed"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in playwright-acustomed (PyPI)"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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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Detection rules are retrieved from Rulezet.

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