Malicious Code Injection in polymeria-butaouper Package
Summary
MAL-2025-164486: Malicious code in polymeria-butaouper (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The polymeria-butaouper package is part of the npm ecosystem, typically used for various JavaScript functionalities. However, it has been identified as part of a malicious campaign that floods the npm registry with derivative packages. This package is designed to inflate developer reputation scores through automated scripts that publish numerous variants with altered metadata.
Vulnerability Detail
The vulnerability originates from the package being part of a malicious campaign associated with the tea.xyz token reward system. It contains scripts that modify the package.json file by removing private flags, changing version numbers, and generating random package names. This leads to the continuous republishing of these variants, which pollutes the npm registry and can compromise the integrity of projects relying on this package.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall polymeria-butaouperIf 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 polymeria-butaouper package and look for alternative packages that provide similar functionality without the associated risks. Additionally, you can monitor your package dependencies using tools like Vulert to ensure you are alerted to any vulnerabilities in real-time.
Conclusion
The polymeria-butaouper package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry. It is crucial to uninstall this package and monitor your dependencies for vulnerabilities to maintain the integrity of your projects.
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FAQ
The polymeria-butaouper package is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores.
This vulnerability can compromise the integrity of your project by introducing malicious code that modifies your package metadata and floods the npm registry.
If you have installed the polymeria-butaouper package, you should uninstall it immediately and check for any dependencies that may be affected.
You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for any open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
