Malicious Code Injection in mutus-manis-nuatr Package

mutus-manis-nuatr Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-161185: Malicious code in mutus-manis-nuatr (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The mutus-manis-nuatr package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic 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 and the security of applications relying on it.

Vulnerability Detail

The vulnerability stems from the presence of malicious code within the mutus-manis-nuatr package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the continuous republishing of variants that pollute the npm registry. The origin of this issue is linked to a broader campaign that exploits npm's publishing mechanisms, posing risks such as reputation damage for developers and potential security breaches in applications that utilize these compromised packages.

How To Fix

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

npm uninstall mutus-manis-nuatr

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, you can avoid using the mutus-manis-nuatr package and look for alternative packages that provide similar functionality without the associated risks. Additionally, you can monitor your package-lock.json file for any unauthorized changes.

Conclusion

The mutus-manis-nuatr package contains malicious code that poses significant risks to applications using it. It is crucial to uninstall this package and monitor for any unauthorized changes in your project. Utilizing tools like Vulert can help you stay informed about vulnerabilities in your dependencies.

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FAQ

The mutus-manis-nuatr package is an npm package involved in the tea.xyz token reward campaign, designed to automate the generation and publication of derivative packages.

The malicious code can modify your package.json file, remove private flags, and continuously republish variants, potentially leading to security vulnerabilities and reputation damage.

You should uninstall the mutus-manis-nuatr package immediately and monitor your project for any unauthorized changes.

Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. You can check your application using the Vulert playground without any signup at Vulert Scanner.

Currently, there is no patched version available. It is recommended to uninstall the package and monitor for updates from the package maintainers.

How To Fix

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

npm uninstall mutus-manis-nuatr

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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