Malicious Code Injection in mutaus-mansis-nutayirop: A Threat to npm Packages

mutaus-mansis-nutayirop Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-161097: Malicious code in mutaus-mansis-nutayirop (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The package 'mutaus-mansis-nutayirop' is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. These packages often contain scripts designed to manipulate package metadata and inflate developer reputation scores, posing significant risks to developers and users alike.

Vulnerability Detail

The vulnerability in 'mutaus-mansis-nutayirop' stems from its malicious code that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is intended to create numerous derivative packages, polluting the npm registry and potentially leading to security risks for applications that depend on these packages. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which exploits npm's package management system for malicious purposes.

How To Fix

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

npm uninstall mutaus-mansis-nutayirop

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, avoid using the 'mutaus-mansis-nutayirop' package and consider using alternative packages that provide similar functionality without the associated risks. Additionally, monitor your package dependencies regularly to ensure no malicious packages are included.

Conclusion

The 'mutaus-mansis-nutayirop' package poses significant risks due to its malicious code that alters package metadata. It is essential to remove this package from your projects and monitor your dependencies for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications by providing real-time alerts for open-source vulnerabilities.

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FAQ

The primary risk is the injection of malicious code that modifies package metadata, which can lead to security vulnerabilities in applications that use this package.

You can use Vulert to monitor your application for vulnerabilities. By simply analyzing your package-lock.json file, Vulert provides real-time alerts for any open-source vulnerabilities.

Immediately uninstall the package using 'npm uninstall mutaus-mansis-nutayirop' and review your other dependencies for any potential vulnerabilities.

Regularly audit your dependencies using tools like Vulert and keep your packages updated to the latest secure versions to minimize risks.

If no alternatives are available, consider forking the package and removing the malicious code, but ensure you understand the implications and maintain security best practices.

How To Fix

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

npm uninstall mutaus-mansis-nutayirop

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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