Malicious Code Injection in mand-nofaff-mutunau Package

mand-nofaff-mutunau Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-159580: Malicious code in mand-nofaff-mutunau (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The mand-nofaff-mutunau package is part of the npm ecosystem, often utilized in JavaScript projects. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with numerous derivative packages. This package, like others in the campaign, is designed to manipulate developer reputation scores through automated publishing scripts.

Vulnerability Detail

The vulnerability in the mand-nofaff-mutunau package stems from its inclusion in a malicious campaign that deploys scripts to automatically modify package.json files. These scripts remove private flags, alter version numbers, and generate random package names, leading to the pollution of the npm registry. This can result in security risks for developers who unknowingly install these compromised packages, potentially leading to further exploitation.

How To Fix

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

npm uninstall mand-nofaff-mutunau

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 mand-nofaff-mutunau package and monitor your dependencies for any malicious activity. Additionally, consider using tools like Vulert to scan your package-lock.json for vulnerabilities. You can check if your application is affected by visiting the Vulert playground at https://vulert.com/scanner.

Conclusion

The mand-nofaff-mutunau package poses a significant risk due to its malicious code designed to manipulate npm registry entries. It is crucial for developers to remove this package and monitor their projects for vulnerabilities to maintain security.

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FAQ

The mand-nofaff-mutunau package is an npm package associated with a token reward campaign that generates and publishes derivative packages.

The vulnerability can lead to the installation of malicious packages that modify your project's configuration and potentially expose it to further security risks.

You should uninstall the mand-nofaff-mutunau package immediately and check your project for any unauthorized changes.

You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time without requiring code access.

Regularly audit your dependencies, use trusted sources for packages, and utilize vulnerability scanning tools to stay informed about potential risks.

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How To Fix

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

npm uninstall mand-nofaff-mutunau

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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