Malicious Code Injection in mulyono-jus46-breki Package
Summary
MAL-2025-74452: Malicious code in mulyono-jus46-breki (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The mulyono-jus46-breki package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. It is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. This package has been identified as containing malicious scripts that can compromise the integrity of the npm registry.
Vulnerability Detail
The vulnerability in the mulyono-jus46-breki package originates from its inclusion in a campaign that floods the npm registry with malicious packages. These packages contain scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. The continuous republishing of these variants leads to pollution of the npm registry, potentially affecting 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 mulyono-jus46-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 package by using npm's package-lock.json file to monitor dependencies. You can also utilize Vulert to check if your application is affected by this vulnerability without requiring access to the code or installation. Visit the Vulert playground at https://vulert.com/scanner to assess your application's vulnerability status.
Conclusion
The mulyono-jus46-breki package poses a significant risk due to its malicious code that modifies package metadata and floods the npm registry. It is crucial for developers to remove this package and monitor their applications for vulnerabilities to maintain security and integrity.
See every vulnerability recorded for mulyono-jus46-breki →
FAQ
It is an npm package associated with the tea.xyz token reward campaign, designed to generate and publish derivative packages.
The vulnerability can lead to the pollution of the npm registry, affecting the integrity of packages and potentially compromising your project's security.
You should uninstall the mulyono-jus46-breki package immediately and check for any dependencies that may rely on it.
Yes, you can use Vulert to monitor and alert for open-source vulnerabilities in your software by analyzing the package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check your application's vulnerability status without any signup.
