Malicious Code Detected in asnyc Package - Security Alert
Summary
MAL-2025-14910: Malicious code in asnyc (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The asnyc package is a Node.js library commonly used for asynchronous programming, allowing developers to write cleaner and more manageable code. However, it has been identified to contain malicious code that poses significant security risks to applications relying on it.
Vulnerability Detail
The vulnerability in the asnyc package stems from the inclusion of malicious code that can compromise the security of applications utilizing this package. This code may lead to unauthorized access, data breaches, or other malicious activities. The issue was first introduced in version 0 and affects all subsequent versions, 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 asnycIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can prevent the use of the asnyc package in your project by removing it from your package.json file and running the command: npm uninstall asnyc.
Conclusion
The discovery of malicious code in the asnyc package highlights the importance of vigilance in managing dependencies. Users are urged to take immediate action to protect their applications by removing the affected package and monitoring for updates or alternatives.
See every vulnerability recorded for asnyc →
FAQ
The asnyc package is a Node.js library designed for asynchronous programming, helping developers manage asynchronous operations more effectively.
The malicious code was introduced in version 0 of the asnyc package and has been present in all subsequent versions.
Using the asnyc package can lead to unauthorized access, data breaches, and other security vulnerabilities in your application.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Check your application against this vulnerability using the Vulert playground at Vulert Scanner.
If you have used the asnyc package, it is crucial to uninstall it immediately and consider using a secure alternative.
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