---
id: MAL-2026-18122
title: Malicious code in moveworks-capi-starter (PyPI)
summary: Malicious code in moveworks-capi-starter (PyPI)
severity: critical
exploited: true
vendor: moveworks-capi-starter
product: moveworks-capi-starter
ecosystem: pip
affected:
  - moveworks-capi-starter
published: '2026-10-21'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T14:30:32.948761491Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/MAL-2026-18122'
references:
  - url: 'https://bad-packages.kam193.eu/pypi/package/moveworks-capi-starter'
  - url: 'https://pypi.org/project/moveworks-capi-starter/0.2.0/'
  - url: 'https://pypi.org/project/moveworks-capi-starter/0.0.0/'
tags:
  - osv
  - pip
  - malware
ingestedAt: '2026-10-22T11:56:43.864Z'
---

## Overview


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

## Source: amazon-inspector (82a1f2ebbd0f8423c7e02c1a9b0571cec02bd6d343b88583f6a85dd06a056a99)
setup.py overrides the install command to collect the installer's hostname and resolved local IP address and POST them as JSON to the hardcoded URL https://webhook.site/17a7df2e-3d56-4c5a-b7a9-9a95fe58a533 during `pip install`, tagged with the package name and version. The beacon fires unconditionally at install time with no user disclosure or opt-out, and the package itself provides no documented functionality — the shipped code is a proof-of-concept beacon with placeholder author metadata. The exfiltrated data is limited to host identifiers (hostname, IP) rather than credentials, but the install-time network callback to a third-party collector enables correlation of installations with the operator of the webhook endpoint.

## Source: kam193 (2cd8f99409a87f01743f65f381fefa800176a29d47d6119743ae2bd0ce1f7583)
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

- `moveworks-capi-starter`

## Remediation

Refer to the advisory for the patched release.