Malicious Code Exfiltration in azure-langchain-example Package
Summary
MAL-2026-17213: Malicious code in azure-langchain-example (PyPI). Affects azure-langchain-example versions 0.1.0. No fix is published. How to fix ↓
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Background
The azure-langchain-example package is a Python library available on PyPI, designed for integrating Azure services with LangChain. It aims to simplify the development of applications that leverage Azure's capabilities. However, this package has been identified to contain malicious code that compromises user data, making it a significant security risk.
Vulnerability Detail
The vulnerability originates from the package's design, which includes code that exfiltrates sensitive information such as the host's IP address and username upon installation. This malicious behavior is executed by overriding the install command in the setup.py file, allowing the code to run during the installation process. The implications of this vulnerability are serious, as it can lead to unauthorized access to user data and potential exploitation by malicious actors.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
pip uninstall azure-langchain-exampleIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, avoid installing the azure-langchain-example package until a secure version is available. If you have already installed it, remove it using the command: 'pip uninstall azure-langchain-example'.
Conclusion
The azure-langchain-example package has been identified as containing malicious code that can exfiltrate sensitive information from users' systems. It is crucial to uninstall this package and monitor for any updates or patches that may address this vulnerability. Utilizing tools like Vulert can help in identifying such vulnerabilities in your applications.
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FAQ
It is a Python library designed for integrating Azure services with LangChain, aimed at simplifying application development.
The package exfiltrates sensitive information such as the host's IP address and username during installation.
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Uninstall the package immediately using the command 'pip uninstall azure-langchain-example' to mitigate any risks.
As of now, there is no patched version available. Keep an eye on the official repository for updates.
