Critical Malicious Code Vulnerability in babel-node Package
Summary
MAL-2025-15286: Malicious code in babel-node (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The babel-node package is a command line tool that is part of the Babel ecosystem, which is widely used for transpiling JavaScript code. It allows developers to run JavaScript files that use ES6+ syntax without pre-compiling them. However, the package has been found to contain malicious code, posing significant risks to users who rely on it for their development workflows.
Vulnerability Detail
The vulnerability in the babel-node package arises from the inclusion of malicious code that can compromise the security of applications utilizing this package. This malicious code can lead to unauthorized access, data breaches, or other harmful actions within the user's environment. The issue originates from the package's codebase, which was intentionally altered to introduce these vulnerabilities, making it critical for users to take immediate action.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall babel-nodeIf 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 can avoid using the babel-node package until the vulnerability is fully addressed. Alternatively, consider using other transpilation tools that do not have known vulnerabilities.
Conclusion
The discovery of malicious code in the babel-node package highlights the importance of maintaining vigilance when using open-source software. Users are strongly encouraged to update their packages and monitor for vulnerabilities to safeguard their applications.
See every vulnerability recorded for babel-node →
FAQ
babel-node is a command line tool that allows developers to run JavaScript files using Babel's transpilation capabilities without pre-compiling them.
The malicious code can lead to unauthorized access and potential data breaches, posing significant security risks to applications using this package.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
As a temporary measure, avoid using the babel-node package until a fix is implemented, or consider using alternative tools for transpilation.
Detailed information about the vulnerability can be found on the GitHub repository of the malicious package: https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/babel-node/MAL-2025-15286.json.
