Malicious Code Injection in mutdaufs-marimasa-bustyasd Package
Summary
MAL-2025-161119: Malicious code in mutdaufs-marimasa-bustyasd (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The mutdaufs-marimasa-bustyasd package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises its integrity.
Vulnerability Detail
The vulnerability stems from the presence of malicious scripts within the mutdaufs-marimasa-bustyasd package. These scripts are designed to modify the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior leads to the continuous republishing of variants, which pollutes the npm registry and can potentially harm developers and users relying on legitimate packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mutdaufs-marimasa-bustyasdIf 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 avoid using the mutdaufs-marimasa-bustyasd package and look for alternative packages that provide similar functionality without the associated risks. Additionally, regularly monitor your package dependencies for vulnerabilities using tools like Vulert.
Conclusion
The mutdaufs-marimasa-bustyasd package has been identified as containing malicious code that compromises its integrity and can affect the npm ecosystem. It is essential to uninstall this package and monitor your dependencies to ensure the security of your project.
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FAQ
It is an npm package associated with the tea.xyz token reward campaign, designed to generate and publish derivative packages.
The malicious code modifies your package.json file and can lead to the pollution of the npm registry, affecting the integrity of your project.
You should uninstall the package immediately using npm uninstall mutdaufs-marimasa-bustyasd and monitor your dependencies for any further vulnerabilities.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using 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.
