Malicious Code Detected in iife-sample Package - Security Alert
Summary
MAL-2025-191511: Malicious code in iife-sample (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The iife-sample package is a JavaScript library commonly used in Node.js applications for creating Immediately Invoked Function Expressions (IIFE). It is designed to help developers encapsulate code and avoid polluting the global scope. However, this package has been identified to contain malicious code that poses significant security risks to applications utilizing it.
Vulnerability Detail
The vulnerability in the iife-sample package stems from the presence of malicious code that can execute unauthorized actions within the user's environment. This code was discovered through an analysis by Amazon Inspector, which flagged the package for containing harmful scripts. The ramifications of this vulnerability include potential data breaches, unauthorized access to sensitive information, and compromise of the application’s integrity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall iife-sampleIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can avoid using the iife-sample package altogether and refactor your code to eliminate its dependency. Consider using native JavaScript IIFE patterns or other well-maintained libraries that do not have known vulnerabilities.
Conclusion
The iife-sample package has been identified as containing malicious code, posing significant security risks to applications. It is crucial to remove this package and replace it with a secure alternative to protect your application from potential threats. Regularly monitor your dependencies for vulnerabilities using tools like Vulert.
See every vulnerability recorded for iife-sample →
FAQ
The iife-sample package is a JavaScript library used for creating Immediately Invoked Function Expressions, helping developers encapsulate code.
The malicious code was detected by Amazon Inspector, which flagged the iife-sample package during its security analysis.
The risks include unauthorized access to sensitive data, potential data breaches, and compromise of application integrity.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit their playground at Vulert Scanner to check your application without needing to sign up.
If immediate removal is not possible, consider implementing a workaround by refactoring your code to eliminate the dependency on the iife-sample package.
