Malicious Code Detected in Equival Package (npm)

equival Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-19755: Malicious code in equival (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The 'equival' package is a Node.js library designed for various utility functions in JavaScript applications. It is widely used in the npm ecosystem for its simplicity and effectiveness. However, it has recently been identified to contain malicious code, posing significant risks to applications that rely on it.

Vulnerability Detail

The vulnerability in the 'equival' package stems from the inclusion of malicious code that can compromise the security of applications using it. This code can lead to unauthorized access, data breaches, or other harmful actions within the affected systems. The issue was introduced in version 0 and affects all subsequent versions.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall equival

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary workaround, consider using alternative packages that provide similar functionality without the associated risks. Always ensure to review the security status of any package before integrating it into your project.

Conclusion

The discovery of malicious code in the 'equival' package highlights the importance of maintaining vigilance in software dependencies. Users are advised to uninstall the affected package and consider alternatives to safeguard their applications.

See every vulnerability recorded for equival →

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FAQ

The 'equival' package is a utility library for JavaScript applications, commonly used in the npm ecosystem.

The malicious code was identified by security researchers from Amazon Inspector, who reported the vulnerability.

Using the compromised 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 using just the package-lock.json file. Check your application's status at Vulert Scanner.

Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without requiring an account.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall equival

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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