Malicious Code Injection in udin-kue69-ruro Package: A Threat to npm Ecosystem
Summary
MAL-2025-109920: Malicious code in udin-kue69-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The udin-kue69-ruro package is part of a series of malicious packages that emerged during the tea.xyz token reward campaign. These packages are designed to manipulate the npm registry by automatically generating and publishing derivative packages with randomized names. This behavior is intended to inflate developer reputation scores in exchange for token rewards, making the package a significant threat to the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability in the udin-kue69-ruro package stems from its malicious payload, which modifies the package.json file to remove private flags and alters version numbers. It generates random Indonesian-themed package names and continuously republishes these variants, leading to pollution of the npm registry. This not only compromises the security of the affected packages but also affects developers relying on the npm ecosystem for legitimate packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall udin-kue69-ruroIf 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 udin-kue69-ruro package and any other packages associated with the tea.xyz token reward campaign. Additionally, consider using tools like Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.
Conclusion
The udin-kue69-ruro package poses a significant threat to the npm ecosystem due to its malicious behavior aimed at manipulating the registry. It is crucial for developers to be vigilant, remove affected packages, and utilize tools like Vulert to ensure the security of their applications.
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FAQ
The udin-kue69-ruro package is a malicious npm package that is part of a campaign to inflate developer reputation scores through the automatic generation of derivative packages.
The vulnerability can lead to the pollution of the npm registry, compromising the integrity of your project's dependencies and potentially introducing security risks.
You should remove the udin-kue69-ruro package from your project and monitor for any updates or patches that may be released.
Yes, Vulert allows you to monitor and alert in real-time for open-source vulnerabilities using just your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
