Critical Malicious Code Vulnerability in @huntersofbook/core Package
Summary
MAL-2025-191229: Malicious code in @huntersofbook/core (npm). Affects @huntersofbook/core versions 0.5.1. No fix is published. How to fix ↓
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Background
The @huntersofbook/core package is a Node.js library used in various applications for its core functionalities. It is designed to facilitate specific tasks within the Node.js ecosystem, providing developers with essential tools. However, this package has been compromised, leading to significant security concerns.
Vulnerability Detail
The vulnerability originates from a malicious code injection in the @huntersofbook/core package, specifically version 0.5.1. This package was infected by the Sha1-Hulud: The Second Coming NPM worm, which is designed to steal tokens and credentials from the user's environment. The worm not only propagates itself to other NPM packages owned by the user but also establishes persistence through GitHub actions. Furthermore, it poses a risk of destroying the user's home directory, making it critical for users to act swiftly.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @huntersofbook/coreIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, users can isolate their development environment by using Docker or similar containerization tools to prevent the malicious code from affecting their main system. Additionally, ensure that sensitive data is stored securely and not accessible to the compromised package.
Conclusion
The @huntersofbook/core package has been compromised by a malicious worm that poses severe risks to users. Immediate action is required to mitigate the impact of this vulnerability. Users should uninstall the package, rotate their credentials, and consider using tools like Vulert for ongoing monitoring.
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FAQ
Immediately uninstall the package and rotate any secrets or keys stored on your computer.
The malicious code can steal sensitive tokens and credentials, propagate to other packages, and potentially destroy your home directory.
Regularly monitor your dependencies for vulnerabilities using tools like Vulert, which can alert you in real-time for open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
Always keep your packages updated, regularly audit your dependencies, and use tools to monitor for vulnerabilities.
