python-dev-toolkit

GHSA-m9jc-pmj9-vq3j

Malicious code in python-dev-toolkit (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1.9`

## Source: kam193 (3e8bbf18a10505977ab19adc6dd13d15e1c7df3c69391e1c930289b953619549)
Installing packages exfiltrates data (different in different packages and versions) or run revshells


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


Campaign: 2025-08-learning-pypi-demo-nisimi


Reasons (based on the campaign):


 - The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.


 - exfiltration-generic

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/python-dev-toolkit/MAL-2025-191839.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/python-dev-toolkit
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/python-dev-toolkit/MAL-2025-191839.json
- https://github.com/advisories/GHSA-m9jc-pmj9-vq3j

Compromised versions (1)

= 0.1.9

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.