MAL-2026-4355
Vulnerability from ossf_malicious_packages
Published
2026-05-26 02:50
Modified
2026-05-26 04:55
Summary
Malicious code in mistral-workflows-plugins-webhook (PyPI)
Details

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

Source: kam193 (e87825efe9006ca3d435869b276f0d8526a1255ec71ac6e7aa0ea1bb068b6673)

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.

Source: ossf-package-analysis (f1cc2ab2edf3a60cf389b863157610e1ed044ecd04c13654ffae60a9e11e2d3f)

The OpenSSF Package Analysis project identified 'mistral-workflows-plugins-webhook' @ 999.0.0 (pypi) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mistral-workflows-plugins-webhook"
      },
      "versions": [
        "999.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    },
    {
      "contact": [
        "https://github.com/ossf/package-analysis",
        "https://openssf.slack.com/channels/package_analysis"
      ],
      "name": "OpenSSF: Package Analysis",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "import_time": "2026-05-26T03:14:17.904986399Z",
        "modified_time": "2026-05-26T02:50:39Z",
        "sha256": "f1cc2ab2edf3a60cf389b863157610e1ed044ecd04c13654ffae60a9e11e2d3f",
        "source": "ossf-package-analysis",
        "versions": [
          "999.0.0"
        ]
      },
      {
        "id": "pypi/GENERIC-standard-pypi-install-pentest/mistral-workflows-plugins-webhook",
        "import_time": "2026-05-26T04:53:39.949835678Z",
        "modified_time": "2026-05-26T03:27:28.272963Z",
        "sha256": "e87825efe9006ca3d435869b276f0d8526a1255ec71ac6e7aa0ea1bb068b6673",
        "source": "kam193",
        "versions": [
          "999.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (e87825efe9006ca3d435869b276f0d8526a1255ec71ac6e7aa0ea1bb068b6673)\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\n## Source: ossf-package-analysis (f1cc2ab2edf3a60cf389b863157610e1ed044ecd04c13654ffae60a9e11e2d3f)\nThe OpenSSF Package Analysis project identified \u0027mistral-workflows-plugins-webhook\u0027 @ 999.0.0 (pypi) as malicious.\n\nIt is considered malicious because:\n\n- The package communicates with a domain associated with malicious activity.\n",
  "id": "MAL-2026-4355",
  "modified": "2026-05-26T04:55:28Z",
  "published": "2026-05-26T02:50:39Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/mistral-workflows-plugins-webhook"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in mistral-workflows-plugins-webhook (PyPI)"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…