siempyl-sumo

GHSA-xmf3-297f-w3mp

Malicious code in siempyl-sumo (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.0.1`

## Source: kam193 (493e667735febe5b3e4cd2cc47ae0b5a09ddacf051dc2804e5e742574ceb5ec4)
Dependency confusion attempt. The user identifies themselves as a HackerOne user abusing the PyPI for the purpose of a bug bounty program. This package did not contain any exfiltration activity.


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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-hackerone-bugbounty


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.


 - dependency-confusion

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/siempyl-sumo/MAL-2026-2534.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/siempyl-sumo
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/siempyl-sumo/MAL-2026-2534.json
- https://github.com/advisories/GHSA-xmf3-297f-w3mp

Compromised versions (1)

= 0.0.1

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