Malicious Code Injection in yuni-bubur86-breki: A Threat to npm Users
Summary
MAL-2025-76444: Malicious code in yuni-bubur86-breki (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package yuni-bubur86-breki is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to generate and publish derivative packages with randomized names, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that modifies package.json files and repopulates the npm registry with harmful variants.
Vulnerability Detail
The vulnerability in yuni-bubur86-breki originates from its association with a malicious campaign that floods the npm registry with derivative packages. The malicious payload alters the package.json file by removing private flags and changing version numbers, allowing for unauthorized access and manipulation of the package. This can lead to a polluted npm registry, making it difficult for developers to find legitimate packages and potentially compromising their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall yuni-bubur86-brekiIf 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 yuni-bubur86-breki package and look for alternative packages that provide similar functionality without the associated risks. Always verify the integrity and source of packages before installation.
Conclusion
The yuni-bubur86-breki package poses a significant risk to npm users due to its malicious code that alters package.json files and repopulates the npm registry with harmful variants. It is essential to uninstall this package and monitor your dependencies for vulnerabilities to maintain the security of your applications.
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FAQ
yuni-bubur86-breki is an npm package that was part of a malicious campaign to inflate developer reputation scores through the generation of derivative packages.
The vulnerability can lead to unauthorized modifications in your package.json file, potentially compromising your application and polluting the npm registry.
You should uninstall the package immediately using the command: npm uninstall yuni-bubur86-breki.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just package-lock.json. You can check if your application is affected by this vulnerability using the Vulert playground at Vulert Scanner.
Regularly update your dependencies and use tools like Vulert to monitor for vulnerabilities in real-time.
