MAL-2026-1086

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/tchap-bot/MAL-2026-1086.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-1086
Published
2026-02-28T11:55:40Z
Modified
2026-02-28T13:01:38.305402Z
Summary
Malicious code in tchap-bot (PyPI)
Details

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

Source: kam193 (ca239020bc35efc249b5f387dc3ae473132184319b88a498ba3f7ddd9dd6dfe3)

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 (e89fc85e4395a4d3008762de9797463e4353fb925e6e0663bd4f4046cf184e78)

The OpenSSF Package Analysis project identified 'tchap-bot' @ 199.0.99 (pypi) as malicious.

It is considered malicious because:

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

  • The package executes one or more commands associated with malicious behavior.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-02-28T12:12:11.051637612Z",
            "modified_time": "2026-02-28T11:55:40Z",
            "source": "ossf-package-analysis",
            "sha256": "e89fc85e4395a4d3008762de9797463e4353fb925e6e0663bd4f4046cf184e78",
            "versions": [
                "199.0.99"
            ]
        },
        {
            "import_time": "2026-02-28T12:48:34.764723788Z",
            "id": "pypi/GENERIC-standard-pypi-install-pentest/tchap-bot",
            "source": "kam193",
            "sha256": "ca239020bc35efc249b5f387dc3ae473132184319b88a498ba3f7ddd9dd6dfe3",
            "modified_time": "2026-02-28T12:12:09.357013Z",
            "versions": [
                "199.0.99"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / tchap-bot

Package

Name
tchap-bot
View open source insights on deps.dev
Purl
pkg:pypi/tchap-bot

Affected ranges

Affected versions

199.*
199.0.99

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/tchap-bot/MAL-2026-1086.json"