VYPR

pypi · Malicious package advisory

Malware

flatfox-api

GHSA-h94p-5prg-mg4q

Malicious code in flatfox-api (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 999.999.99`

## Source: kam193 (c1abb243ceb7b5b94ca2f950d7cf27838ad4c22bc9771a0ea878af5497bfebf2)
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 (429da42d718cc5f399915b0f5d2f25d3d86f9286a96be2f0661216bd13dc6f17)
The OpenSSF Package Analysis project identified 'flatfox-api' @ 999.999.99 (pypi) as malicious.

It is considered malicious because:

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

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/flatfox-api/MAL-2025-6787.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/flatfox-api
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/flatfox-api/MAL-2025-6787.json
- https://github.com/advisories/GHSA-h94p-5prg-mg4q

Compromised versions (1)

  • = 999.999.99

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