Malicious Code Injection in maya-jus54-miaww Package - npm Vulnerability

maya-jus54-miaww Updated 27 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-88350: Malicious code in maya-jus54-miaww (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The maya-jus54-miaww package is part of the npm ecosystem, which is widely used for JavaScript package management. This package has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package compromises the integrity of the npm registry and poses risks to developers relying on it.

Vulnerability Detail

The vulnerability originates from the package being part of a token reward campaign that floods npm with malicious packages. It contains scripts designed to modify the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior leads to the pollution of the npm registry and can potentially compromise the security of applications that depend on these packages.

How To Fix

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

npm uninstall maya-jus54-miaww

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a temporary measure, you can avoid using the maya-jus54-miaww package and replace it with a trusted alternative. Regularly monitor your dependencies for any updates or vulnerabilities.

Conclusion

The maya-jus54-miaww package poses a significant risk due to its malicious code designed to manipulate the npm registry. It is crucial for developers to remove this package and monitor their dependencies closely to maintain the security of their applications.

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FAQ

The maya-jus54-miaww package is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores.

This vulnerability can lead to the pollution of the npm registry and may compromise the security of applications that depend on the affected package.

You should uninstall the maya-jus54-miaww package immediately and audit your project for any other potentially malicious packages.

You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.

Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.

How To Fix

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

npm uninstall maya-jus54-miaww

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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