Malicious Code Injection in uuzip Package - Critical Vulnerability Detected
Summary
MAL-2025-191918: Malicious code in uuzip (PyPI). Affects uuzip versions 0.1.0 – 0.1.3. No fix is published. How to fix ↓
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Background
The uuzip package, available on PyPI, is designed for handling archive files in Python applications. It provides functionalities for creating and extracting zip files, making it a useful tool for developers. However, recent findings have revealed a critical vulnerability that allows malicious code execution during the initialization of the archive-support class, posing significant risks to users.
Vulnerability Detail
The vulnerability originates from the uuzip package, specifically in its initialization process where it executes code from an external file. This behavior enables the package to download and run multi-stage malware, which can lead to severe consequences such as data theft and system compromise. The malicious campaign associated with this vulnerability has been categorized as infostealers, highlighting its intent to extract sensitive information from users.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
pip uninstall uuzipIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, users are advised to avoid using the uuzip package until the update is applied. If you must use it, consider implementing strict network controls to prevent unauthorized downloads from the identified malicious IP address (77.105.161.164).
Conclusion
The uuzip package has been identified as having a critical vulnerability that allows for the execution of malicious code. Users are strongly advised to update to the latest version to protect their applications from potential threats. Additionally, utilizing tools like Vulert can help monitor and manage vulnerabilities in your software effectively.
See every vulnerability recorded for uuzip →
FAQ
uuzip is a Python package used for creating and extracting zip files, providing developers with essential archive handling capabilities.
The vulnerability allows the execution of malicious code, which can lead to data breaches, system compromise, and unauthorized access to sensitive information.
If you have installed an affected version of uuzip, immediately update to the latest version using 'pip install --upgrade uuzip' to mitigate the risk.
Yes, you can use Vulert to monitor and alert for open-source vulnerabilities in your software. It analyzes your Pipfile.lock for potential issues.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
