---
id: MAL-2026-16421
title: Malicious code in kerokwis (PyPI)
summary: Malicious code in kerokwis (PyPI)
severity: critical
exploited: true
vendor: kerokwis
product: kerokwis
ecosystem: pip
affected:
  - kerokwis
published: '2026-09-22'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T01:00:11.647255665Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/MAL-2026-16421'
references:
  - url: 'https://bad-packages.kam193.eu/pypi/package/kerokwis'
tags:
  - osv
  - pip
  - malware
ingestedAt: '2026-09-24T07:16:01.858Z'
---

## Overview


---
_-= Per source details. Do not edit below this line.=-_

## Source: kam193 (118186230c3ddb5c23ae32df8fed10655f2c64939daa9a09d5ef71f16884a4f0)
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.


## Affected packages

- `kerokwis`

## Remediation

Refer to the advisory for the patched release.