Malicious Code Injection in yelping_lemur-silentdev Package
Summary
MAL-2025-111289: Malicious code in yelping_lemur-silentdev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The yelping_lemur-silentdev package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate development by providing reusable code. However, it has been identified as part of a malicious campaign that exploits npm's publishing capabilities, leading to significant security risks for developers and their applications.
Vulnerability Detail
The vulnerability originates from the yelping_lemur-silentdev package being associated with a malicious campaign aimed at inflating developer reputation scores through the automatic generation and publishing of derivative packages. The malicious code modifies the package.json file by removing private flags, altering version numbers, and creating random package names, which can lead to the pollution of the npm registry and potential security risks for applications relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall yelping_lemur-silentdevIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, avoid using the yelping_lemur-silentdev package in your projects. If it is already included, consider replacing it with a trusted alternative that provides similar functionality without the associated risks.
Conclusion
The yelping_lemur-silentdev package poses a significant security risk due to its malicious code designed to manipulate npm's publishing system. It is crucial for developers to remove this package from their projects and monitor for any potential impacts on their applications. Utilizing tools like Vulert can help in identifying vulnerabilities in real-time.
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FAQ
It is an npm package that has been identified as part of a malicious campaign to manipulate developer reputation scores.
The malicious code can alter your package.json file, leading to the publication of unauthorized packages and potential security vulnerabilities.
You should uninstall the package immediately using 'npm uninstall yelping_lemur-silentdev' and monitor your application for any unusual behavior.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without needing to sign up.
Yes, consider using other reputable packages that provide similar functionality without the associated risks.
