Malicious Code Injection in udin-jus48-breki: A Threat to npm Ecosystem
Summary
MAL-2025-75810: Malicious code in udin-jus48-breki (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'udin-jus48-breki' is part of a series of malicious npm packages associated with 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 for token rewards, posing a significant risk to the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability in 'udin-jus48-breki' originates from its malicious code that modifies the package.json file to remove private flags and alters version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This not only compromises the security of the affected packages but also affects the overall trustworthiness of the npm ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall udin-jus48-brekiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can prevent the installation of this malicious package by using npm's package-lock.json to monitor and control your dependencies. Ensure that you do not include 'udin-jus48-breki' in your package.json or package-lock.json files.
Conclusion
The 'udin-jus48-breki' package poses a significant threat to the npm ecosystem due to its malicious code that alters package metadata and floods the registry with derivative packages. It is crucial for developers to remove this package and monitor their dependencies for vulnerabilities to maintain the integrity of their projects.
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FAQ
'udin-jus48-breki' is a malicious npm package associated with a token reward campaign that aims to inflate developer reputation scores.
The vulnerability can compromise your project's security by introducing malicious code that modifies your package.json and pollutes the npm registry.
You should uninstall the package immediately using 'npm uninstall udin-jus48-breki' and check for any other affected dependencies.
You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time without requiring code access.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
