Malicious Code Injection in bella-kupat11-ruro Package

bella-kupat11-ruro Updated 27 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-99898: Malicious code in bella-kupat11-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The bella-kupat11-ruro package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate token rewards through various scripts that automate the generation and publication of derivative packages. However, it has been identified as containing malicious code that compromises its integrity.

Vulnerability Detail

The vulnerability in the bella-kupat11-ruro package stems from its malicious payload, which modifies the package.json file to remove private flags and alters version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This behavior not only affects the reputation of developers but also poses a risk of dependency confusion and potential exploitation by malicious actors.

How To Fix

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

npm uninstall bella-kupat11-ruro

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 malicious package by using npm's package-lock.json to monitor dependencies. Ensure that your project does not include bella-kupat11-ruro by removing it from your package.json and running npm install to refresh your dependencies.

Conclusion

The bella-kupat11-ruro package has been identified as containing malicious code that compromises the integrity of npm packages. It is essential to remove this package from your project and monitor your dependencies for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications.

See every vulnerability recorded for bella-kupat11-ruro →

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FAQ

The bella-kupat11-ruro package is an npm package associated with the tea.xyz token reward campaign, designed to automate the publication of derivative packages.

The vulnerability can lead to the pollution of the npm registry, affecting the integrity of your project's dependencies and potentially exposing it to further malicious activities.

If you have installed the bella-kupat11-ruro package, you should remove it immediately and check for any dependencies that may have been affected.

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

You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.

How To Fix

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

npm uninstall bella-kupat11-ruro

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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