Malicious Code Vulnerability in evil_louse_dumbs Package

evil_louse_dumbs Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-102290: Malicious code in evil_louse_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The evil_louse_dumbs package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to manipulate the npm registry by generating and publishing numerous derivative packages with randomized names. Its primary functionality is to inflate developer reputation scores for token rewards, but this comes at the cost of security and integrity within the npm ecosystem.

Vulnerability Detail

The vulnerability originates from the malicious intent behind the evil_louse_dumbs package, which includes scripts that automatically modify the package.json file. These modifications remove private flags, alter version numbers, and create random package names, leading to pollution of the npm registry. The ramifications of this vulnerability include potential exposure to malicious code, compromised developer reputations, and degradation of the npm ecosystem's reliability.

How To Fix

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

npm uninstall evil_louse_dumbs

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 workaround, you can temporarily prevent the installation of this package by using npm's package-lock.json to monitor dependencies. You can also use the following command to uninstall the package: npm uninstall evil_louse_dumbs.

Conclusion

The evil_louse_dumbs package poses a significant threat due to its malicious code designed to manipulate the npm registry. It is crucial for developers to be vigilant about their dependencies and take immediate action to remove any affected packages. Utilizing tools like Vulert can help maintain the security of your projects.

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FAQ

The evil_louse_dumbs package is a malicious npm package designed to inflate developer reputation scores through the creation of numerous derivative packages.

This vulnerability can lead to the introduction of malicious code into your project, compromising its security and reliability.

You should uninstall the evil_louse_dumbs package immediately and monitor your project for any other malicious dependencies.

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

Regularly monitor your dependencies using tools like Vulert, which alerts you in real-time for open-source vulnerabilities.

How To Fix

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

npm uninstall evil_louse_dumbs

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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