Malicious Code Injection in mutdaufs-marimas-bustyasd Package

mutdaufs-marimas-bustyasd Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-161117: Malicious code in mutdaufs-marimas-bustyasd (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The mutdaufs-marimas-bustyasd package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises its integrity.

Vulnerability Detail

The vulnerability originates from the package's design, which includes autopublish scripts that modify the package.json file to remove private flags and change version numbers. This allows the package to generate random names and continuously republish variants, polluting the npm registry. The ramifications include potential security risks for developers who unknowingly use this package, as it can lead to the installation of malicious software and compromise their applications.

How To Fix

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

npm uninstall mutdaufs-marimas-bustyasd

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 workaround, you can avoid using the mutdaufs-marimas-bustyasd package altogether. If it is already in your project, remove it by executing: npm uninstall mutdaufs-marimas-bustyasd.

Conclusion

The mutdaufs-marimas-bustyasd package contains malicious code that poses significant risks to developers and their applications. Immediate action is required to remove this package from any projects to prevent potential security breaches. Monitoring tools like Vulert can help keep your projects safe from future vulnerabilities.

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FAQ

It is an npm package associated with the tea.xyz token reward campaign, designed to generate and publish derivative packages.

The vulnerability can lead to the installation of malicious software, compromising your application's security and integrity.

You should uninstall the mutdaufs-marimas-bustyasd package immediately to mitigate any potential risks.

Currently, there is no patched version available for the mutdaufs-marimas-bustyasd package.

You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just package-lock.json. You can check your application for vulnerabilities using the Vulert playground at Vulert Scanner without any signup.

How To Fix

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

npm uninstall mutdaufs-marimas-bustyasd

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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