Malicious Code Injection in uarfug-mitayiuhai-sufeua: A Threat to npm Users

uarfug-mitayiuhai-sufeua Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-169581: Malicious code in uarfug-mitayiuhai-sufeua (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The package uarfug-mitayiuhai-sufeua 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 exploit npm's publishing capabilities. It is designed to generate and publish numerous derivative packages with randomized names, which can lead to pollution of the npm registry and compromise developer reputation scores.

Vulnerability Detail

The vulnerability in uarfug-mitayiuhai-sufeua stems from its malicious payload that modifies the package.json file by removing private flags and altering version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants. This behavior not only clutters the npm registry but also poses risks of unintentional dependency inclusion for developers who may unknowingly install these malicious packages.

How To Fix

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

npm uninstall uarfug-mitayiuhai-sufeua

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 measure, avoid using the uarfug-mitayiuhai-sufeua package and monitor your project's dependencies for any signs of malicious activity. Regularly audit your npm packages using npm audit to identify vulnerabilities.

Conclusion

The uarfug-mitayiuhai-sufeua package poses a significant risk due to its malicious code that modifies package metadata and floods the npm registry. It is crucial for developers to be vigilant, remove affected packages, and utilize tools like Vulert to monitor for vulnerabilities in their projects.

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FAQ

uarfug-mitayiuhai-sufeua is an npm package identified as part of a malicious campaign that generates and publishes derivative packages to inflate developer reputation scores.

The vulnerability can lead to the inclusion of malicious packages in your project, potentially compromising its security and integrity.

If you have installed the uarfug-mitayiuhai-sufeua package, you should uninstall it immediately using npm uninstall uarfug-mitayiuhai-sufeua.

You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time. You can also check your application against known vulnerabilities using the Vulert playground.

Regularly audit your dependencies, use trusted sources for packages, and consider implementing automated tools that monitor for vulnerabilities in your projects.

How To Fix

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

npm uninstall uarfug-mitayiuhai-sufeua

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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