Malicious Code Injection in utomo-miemee75-kyuki: A Threat to npm Ecosystem

utomo-miemee75-kyuki Updated 27 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-91605: Malicious code in utomo-miemee75-kyuki (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The package 'utomo-miemee75-kyuki' 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 the npm registry and inflate developer reputation scores through deceptive practices.

Vulnerability Detail

The vulnerability in 'utomo-miemee75-kyuki' arises from its malicious payload that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is intended to continuously republish variants of the package, polluting the npm registry and potentially compromising the integrity of other packages. The origin of this vulnerability is linked to a broader campaign that exploits npm's publishing mechanisms for fraudulent token rewards.

How To Fix

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

npm uninstall utomo-miemee75-kyuki

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 prevent the installation of this package by adding it to your project's .npmrc file with the following line: 'package-lock=false'. This will help avoid the installation of potentially harmful packages until a fix is applied.

Conclusion

The 'utomo-miemee75-kyuki' package poses a significant threat to the npm ecosystem due to its malicious code designed to manipulate the npm registry. It is crucial for developers to remove this package and utilize tools like Vulert for ongoing monitoring of vulnerabilities in their projects.

See every vulnerability recorded for utomo-miemee75-kyuki →

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FAQ

The malicious code can lead to the pollution of the npm registry, affecting the integrity of other packages and potentially compromising the security of applications that rely on them.

You can use tools like Vulert, which monitors your package-lock.json file for vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without needing to sign up.

If you have installed 'utomo-miemee75-kyuki', you should uninstall it immediately using 'npm uninstall utomo-miemee75-kyuki' to mitigate any risks.

Currently, there are no specific patches for 'utomo-miemee75-kyuki'. The best course of action is to remove the package and monitor for any updates.

Vulert provides real-time monitoring and alerts for open-source vulnerabilities in your software by analyzing the package-lock.json file, allowing you to stay informed about potential threats.

How To Fix

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

npm uninstall utomo-miemee75-kyuki

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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