bignum

GHSA-4hpv-f4c6-q52g

Malicious code in bignum (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1.1`

## Source: kam193 (251c8009e3a70f8c3a3a8283dc7f2b603838ec892d7773f0b4886122ff0d97c5)
In this incarnation, the package is no longer a clone of networkx, but continues to use the same technique to run secretly remote code and cover tracks


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


Campaign: 2025-12-graphnode


Reasons (based on the campaign):


 - obfuscation


 - Downloads and executes a remote malicious script.


 - clones-real-package

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/bignum/MAL-2025-192391.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/bignum
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/bignum/MAL-2025-192391.json
- https://www.reversinglabs.com/blog/fake-recruiter-campaign-crypto-devs
- https://github.com/advisories/GHSA-4hpv-f4c6-q52g

Compromised versions (1)

= 0.1.1

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