Malicious Code Detected in maliinn Package (PyPI) - MAL-2025-5655

maliinn Updated 02 Oct 2025

Summary

04/07/2025
CRITICAL
No i
Critical
Not published

MAL-2025-5655: Malicious code in maliinn (PyPI). Affects maliinn versions 0.0.1. No fix is published. How to fix ↓

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Background

The maliinn package, available on the Python Package Index (PyPI), is designed for specific functionalities within Python applications. However, it has been flagged for containing malicious code that communicates with a domain associated with harmful activities. This vulnerability poses significant risks to users who may unknowingly install and use this package in their projects.

Vulnerability Detail

The maliinn package version 0.0.1 has been identified as malicious due to its communication with a domain linked to malicious activities. This vulnerability can lead to unauthorized data access, potential data breaches, and compromise of user systems. The origin of this issue stems from the package's design, which includes harmful code that operates without user consent, making it a serious security threat.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

pip uninstall maliinn

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a workaround, users should avoid using the maliinn package altogether. Instead, consider using alternative packages that serve the same purpose but have been verified as safe. Always ensure to review package details and user feedback before installation.

Conclusion

The maliinn package has been identified as malicious, posing significant risks to users. It is crucial to uninstall this package and seek safer alternatives to protect your applications from potential threats. Always remain vigilant when selecting packages from repositories like PyPI.

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FAQ

The maliinn package is a Python library available on PyPI, which has been flagged for containing malicious code.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.

If you have installed the maliinn package, you should uninstall it immediately using the command pip uninstall maliinn.

Yes, you should look for alternative packages that provide similar functionality but have been verified as safe. Always check user reviews and package details.

Using malicious packages can lead to unauthorized access to your data, potential data breaches, and compromise of your system's security.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

pip uninstall maliinn

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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