Malicious Code Detected in dynlog Package - Security Alert
Summary
MAL-2025-19038: Malicious code in dynlog (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The dynlog package is an npm library designed for logging dynamic data in JavaScript applications. It provides developers with tools to capture and manage log information efficiently. However, recent findings have revealed that this package contains malicious code, posing significant security risks to applications that utilize it.
Vulnerability Detail
The vulnerability in the dynlog package stems from the inclusion of malicious code that can compromise the security of applications using this library. This code may lead to unauthorized access, data breaches, or other malicious activities. The issue was identified in version 0 and has been classified as a serious threat due to its potential impact on user data and application integrity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall dynlogIf 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 replace the dynlog package with an alternative logging library that does not have known vulnerabilities. Consider using packages like 'winston' or 'bunyan' for logging purposes.
Conclusion
The discovery of malicious code in the dynlog package poses a significant risk to applications using it. Immediate action is required to remove the package and replace it with a secure alternative. Regular monitoring for vulnerabilities using tools like Vulert is essential to maintain application security.
See every vulnerability recorded for dynlog →
FAQ
The dynlog package is an npm library used for logging dynamic data in JavaScript applications.
The malicious code can lead to unauthorized access and potential data breaches in applications using the package.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Check your application using the Vulert playground at Vulert Scanner.
It is recommended to remove the dynlog package immediately and replace it with a secure alternative.
Currently, there is no patch available. It is best to remove the package until a secure version is released.
