Malicious Code Injection in biological_krill-excellentdev Package
Summary
MAL-2025-99983: Malicious code in biological_krill-excellentdev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The biological_krill-excellentdev package is part of the npm ecosystem, which is widely used for JavaScript package management. This package is suspected to be involved in a token reward campaign that aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. Such practices can lead to a polluted npm registry, making it difficult for developers to find legitimate packages.
Vulnerability Detail
This vulnerability originates from malicious code embedded within the biological_krill-excellentdev package. The code is designed to modify the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior not only compromises the integrity of the package but also contributes to the pollution of the npm registry, potentially affecting other developers and users who rely on npm for legitimate packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall biological_krill-excellentdevIf 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 remove the biological_krill-excellentdev package from your project by executing the following command: npm uninstall biological_krill-excellentdev. This will prevent the malicious code from executing while you seek a more permanent solution.
Conclusion
The biological_krill-excellentdev package contains malicious code that poses a significant risk to developers and the npm ecosystem. It is crucial to take immediate action to mitigate this vulnerability by updating or uninstalling the package. Utilizing tools like Vulert can help you stay informed about vulnerabilities in your dependencies.
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FAQ
It is an npm package that is suspected to be part of a malicious campaign aimed at inflating developer reputation scores.
The vulnerability can lead to the modification of your package.json file and the pollution of the npm registry, which may affect the integrity of your project.
You should update the package to a patched version if available or uninstall it to prevent any malicious activity.
You can use Vulert, which monitors and alerts you in real-time for open-source vulnerabilities using just your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected without requiring any signup.
