Critical Malicious Code Vulnerability in module-listener Package
Summary
MAL-2025-192308: Malicious code in module-listener (npm). Affected versions are not published. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The module-listener package is a Node.js library used for managing and listening to events in applications. It is designed to facilitate communication between different parts of an application by providing an event-driven architecture. However, this package has been compromised, leading to severe security risks for any application that utilizes it.
Vulnerability Detail
The vulnerability stems from the presence of malicious code embedded within the module-listener package. This code can grant unauthorized access to the system, potentially compromising all data and secrets stored on the affected machine. The malicious nature of this code means that any system running this package should be considered fully compromised, and immediate action is required to mitigate the risks associated with it.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall module-listenerIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a workaround, if you need similar functionality, consider using alternative packages that provide event-listening capabilities without the associated risks. Always ensure to review the security status of any package before installation.
Conclusion
The module-listener package has been identified as containing malicious code, posing significant security risks to any system using it. Immediate removal of the package and rotation of sensitive information is crucial to mitigate these risks. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.
See every vulnerability recorded for module-listener →
FAQ
Immediately uninstall the module-listener package using 'npm uninstall module-listener' and rotate any sensitive information stored on the affected machine.
You can use Vulert, a tool that monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
Failing to remove the module-listener package can lead to unauthorized access to your system, data breaches, and potential loss of sensitive information.
Yes, there are several alternative packages available that provide similar event-listening functionality. Always ensure to check their security status before use.
Regularly monitor your dependencies for vulnerabilities using tools like Vulert, and always review the security history of packages before integrating them into your projects.
