Malicious Code Vulnerability in mb-commons Package on PyPI
Summary
MAL-2025-6546: Malicious code in mb-commons (PyPI). Affects mb-commons versions 0.0.1. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The mb-commons package is a Python library available on the Python Package Index (PyPI) that is designed to provide common utilities for various applications. However, it has been identified to contain malicious code that poses significant security risks to users. This vulnerability can lead to unauthorized access or manipulation of user data, making it critical for developers to address this issue promptly.
Vulnerability Detail
The vulnerability in the mb-commons package originates from malicious code embedded in version 0.0.1. This code can execute harmful actions on the user's system, potentially leading to data breaches or system compromise. The package was flagged by ReversingLabs, indicating that it is a known threat in the open-source community. Users who have installed this version are at risk and should take immediate action to mitigate the threat.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
pip uninstall mb-commonsIf 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 →
Workaround
As a temporary workaround, users should avoid using the mb-commons package until a secure version is released. If the functionality provided by mb-commons is essential, consider using alternative libraries that offer similar features without the associated risks.
Conclusion
The mb-commons package has been identified as containing malicious code, posing significant risks to users. It is essential to uninstall the affected version and monitor for updates or alternatives. Utilizing tools like Vulert can help ensure your applications remain secure against such vulnerabilities.
See every vulnerability recorded for mb-commons →
FAQ
mb-commons is a Python library that provides common utilities for various applications, available on the Python Package Index (PyPI).
The vulnerability involves malicious code embedded in the mb-commons package, which can lead to unauthorized access and potential data breaches.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without needing to sign up.
If you have installed version 0.0.1 of mb-commons, you should uninstall it immediately using the command pip uninstall mb-commons.
Yes, consider using other libraries that provide similar functionalities without the associated security risks. Research and select well-reviewed packages from trusted sources.
