Malicious Code Detected in fdir2 Package: Version 99.99.2 Compromised
Summary
MAL-2025-192354: Malicious code in fdir2 (npm). Affects fdir2 versions 99.99.2. 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 fdir2 package is a Node.js library designed for directory manipulation and file handling. It allows developers to efficiently navigate and manage file systems in their applications. However, the package version 99.99.2 has been identified as malicious, posing significant security risks to users who integrate it into their projects.
Vulnerability Detail
The vulnerability in the fdir2 package arises from its communication with a domain linked to malicious activities and the execution of commands that can compromise system integrity. This behavior can lead to unauthorized access, data theft, or further exploitation of the affected systems. The origin of this vulnerability is traced back to the package's malicious design, which was flagged by the OpenSSF Package Analysis project.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall fdir2If 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 temporary measure, you can remove the fdir2 package from your project until a secure version is released. Use the following command to uninstall the package: 'npm uninstall fdir2'. This will prevent any malicious code from executing in your application.
Conclusion
The fdir2 package version 99.99.2 has been flagged as malicious, posing serious security risks. Users are advised to update or remove the package to protect their applications. Utilizing tools like Vulert can help in monitoring for such vulnerabilities effectively.
See every vulnerability recorded for fdir2 →
FAQ
The fdir2 package is used for directory manipulation and file handling in Node.js applications.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without any signup.
If you cannot update the package right away, consider removing it from your project as a temporary workaround.
The OpenSSF Package Analysis project identified the fdir2 package as malicious due to its communication with a harmful domain and execution of malicious commands.
Yes, tools like Vulert can help you monitor your dependencies for vulnerabilities in real-time using just your package-lock.json file.
