Malicious Code Injection in repulsive_squirrel-biggestdev Package
Summary
MAL-2025-107922: Malicious code in repulsive_squirrel-biggestdev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The repulsive_squirrel-biggestdev package is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. These packages often contain scripts that manipulate package metadata and publish numerous derivative versions, impacting the integrity of the npm registry.
Vulnerability Detail
The vulnerability originates from the malicious design of the repulsive_squirrel-biggestdev package, which includes scripts that modify the package.json file to remove private flags and alter version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants, leading to pollution of the npm registry. This behavior can inflate developer reputation scores fraudulently and compromise the security of applications relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall repulsive_squirrel-biggestdevIf 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 repulsive_squirrel-biggestdev package altogether. If it is already included in your project, remove it by running: npm uninstall repulsive_squirrel-biggestdev. Additionally, consider using Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.
Conclusion
The repulsive_squirrel-biggestdev package poses a significant security risk due to its malicious code that alters package metadata and floods the npm registry. It is crucial for developers to remove this package and utilize tools like Vulert to monitor for vulnerabilities in their applications.
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FAQ
It is an npm package associated with the tea.xyz token reward campaign, known for containing malicious scripts.
The vulnerability can lead to the injection of malicious code, compromising the security and integrity of your application.
You should uninstall the repulsive_squirrel-biggestdev package immediately and monitor your project for vulnerabilities.
Yes, regularly monitor your dependencies using tools like Vulert, which can alert you to open-source vulnerabilities in real-time.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
