Malicious Code Exfiltration in userver-requires-at-least-python-3-10 Package
Summary
MAL-2026-606: Malicious code in userver-requires-at-least-python-3-10 (PyPI). Affects userver-requires-at-least-python-3-10 versions 0.0.0 – 9999. No fix is published. How to fix ↓
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Background
The userver-requires-at-least-python-3-10 package is a Python library available on PyPI, designed to require a minimum Python version of 3.10. However, this package has been identified as malicious, containing code that exfiltrates sensitive information from the host system, such as IP addresses and usernames. This behavior poses a significant risk to users who inadvertently install it.
Vulnerability Detail
The vulnerability originates from the package's design, which overrides the install command in the setup.py file to execute malicious code during installation. This code collects and exfiltrates basic information about the host system without the user's consent. The ramifications include potential data breaches and unauthorized access to sensitive information, making it a serious security concern for users and organizations.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
pip uninstall userver-requires-at-least-python-3-10If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, avoid installing the userver-requires-at-least-python-3-10 package altogether. If it has already been installed, remove it using the command: 'pip uninstall userver-requires-at-least-python-3-10'. Additionally, consider using tools like Vulert to monitor your dependencies for vulnerabilities.
Conclusion
The userver-requires-at-least-python-3-10 package poses a significant security risk due to its malicious code that exfiltrates sensitive information. Users are advised to uninstall the package and monitor their systems for any potential breaches. Utilizing tools like Vulert can help in identifying and managing vulnerabilities in open-source software.
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FAQ
It is a Python package that requires Python version 3.10 or higher, but it has been identified as malicious.
The code exfiltrates sensitive information from the host system, such as IP addresses and usernames, during the installation process.
Uninstall the package immediately using 'pip uninstall userver-requires-at-least-python-3-10' and monitor your system for any unusual activity.
Yes, you can use Vulert's playground at Vulert Scanner to check for vulnerabilities in your application without needing to sign up.
Regularly monitor your dependencies using tools like Vulert, and ensure to review package details and community feedback before installation.
