denomenallib

GHSA-wmv4-622x-6wmj

Malicious code in denomenallib (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 2.7.0`

## Source: kam193 (72b314dc6f8d89e09c9bdd5deae5f16e934e6cddcea9958ef20b43d1b7129154)
Package is prepared to exfiltrate sensitive files. Different packages use different places for the malicious code: it runs during importing the module, is placed in a native binary, or in the setup.py script


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


Campaign: 2025-08-xenlib


Reasons (based on the campaign):


 - files-exfiltration

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/denomenallib/MAL-2025-191716.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/denomenallib
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/denomenallib/MAL-2025-191716.json
- https://github.com/advisories/GHSA-wmv4-622x-6wmj

Compromised versions (1)

= 2.7.0

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