Malicious Code Injection in mulyono-mie45-breki: A Threat to npm Users
Summary
MAL-2025-74469: Malicious code in mulyono-mie45-breki (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'mulyono-mie45-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, aiming to inflate developer reputation scores for token rewards. Its functionality is compromised due to malicious scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability in 'mulyono-mie45-breki' originates from its association with a malicious campaign that floods the npm registry. The package contains scripts that 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, polluting the npm registry and potentially compromising the integrity of other packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mulyono-mie45-brekiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can temporarily avoid using the 'mulyono-mie45-breki' package by removing it from your dependencies. Additionally, consider using alternative packages that provide similar functionality without the associated risks.
Conclusion
The 'mulyono-mie45-breki' package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry. Users are encouraged to remove the package and monitor their dependencies closely to maintain the integrity of their applications.
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FAQ
The main issue is that it contains malicious scripts that modify package metadata and republish variants, leading to npm registry pollution.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.
If you have installed the 'mulyono-mie45-breki' package, it is advised to remove it immediately and check for any dependencies that may have been affected.
While specific exploits have not been detailed, the malicious behavior of the package can lead to significant risks, including reputation damage and registry pollution.
To prevent similar vulnerabilities, regularly audit your dependencies, use tools like Vulert for real-time monitoring, and stay informed about the packages you use.
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