Malicious Code Injection in muda-poke5: A Threat to npm Ecosystem

muda-poke5 Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-160786: Malicious code in muda-poke5 (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

muda-poke5 is a package within the npm ecosystem, primarily used for various development tasks. However, it has been identified as part of a malicious campaign that aims to exploit the npm registry. The package is designed to inflate developer reputation scores through the automatic generation and publication of derivative packages, which can lead to significant pollution of the npm registry.

Vulnerability Detail

The vulnerability in muda-poke5 originates from its involvement in a token reward campaign that floods the npm registry with malicious packages. These packages contain scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. This behavior not only compromises the integrity of the npm registry but also poses a risk to developers who may unknowingly use these compromised packages, leading to potential security breaches in their applications.

How To Fix

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

npm uninstall muda-poke5

If 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 remove the muda-poke5 package from your project by executing the command: 'npm uninstall muda-poke5'. This will prevent any malicious code from executing until a secure version is available.

Conclusion

The muda-poke5 package has been identified as a malicious entity within the npm ecosystem, posing significant risks to developers and their applications. It is crucial to take immediate action by updating or removing the package to safeguard your projects from potential vulnerabilities.

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FAQ

The main issue is that it contains malicious code that modifies package.json files and floods the npm registry with derivative packages.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without needing to sign up.

If you have installed muda-poke5, it is recommended to uninstall it immediately and check for any updates or patches.

Using this package can lead to security vulnerabilities in your application, as it may introduce malicious code that can compromise your system.

Vulert helps by providing real-time monitoring and alerts for open-source vulnerabilities, allowing developers to stay informed and take action quickly.

How To Fix

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

npm uninstall muda-poke5

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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