Malicious Code Detected in flashsort Package - Security Alert
Summary
MAL-2025-20684: Malicious code in flashsort (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The flashsort package is a JavaScript library available on npm that is designed to provide an efficient sorting algorithm. It is used in various applications for sorting data quickly. However, recent findings have revealed that this package contains malicious code, posing a significant risk to users and their applications.
Vulnerability Detail
The vulnerability in the flashsort package originates from the inclusion of malicious code that can compromise the security of applications utilizing this library. This code can lead to unauthorized access, data breaches, or other malicious activities. The issue affects all versions starting from 0, making it critical for users to take immediate action to mitigate potential risks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall flashsortIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, users can remove the flashsort package from their project until a secure version is released. This can be done by executing the following command: npm uninstall flashsort. Consider using alternative sorting libraries that do not have known vulnerabilities.
Conclusion
The flashsort package has been identified to contain malicious code, posing a serious security risk. Users are urged to update or remove the package to protect their applications. Monitoring tools like Vulert can help in identifying vulnerabilities in real-time.
See every vulnerability recorded for flashsort →
FAQ
flashsort is a JavaScript library designed to provide an efficient sorting algorithm for data.
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.
Currently, there is no patched version available. Users should monitor the package repository for updates.
As a temporary measure, consider uninstalling the flashsort package and using an alternative sorting library until a secure version is released.
