Malicious Code Detected in frontend-auth-client Package
Summary
MAL-2025-20968: Malicious code in frontend-auth-client (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 frontend-auth-client package is an npm library designed to facilitate authentication processes in web applications. It provides developers with tools to manage user sessions and secure access to resources. However, this package has been compromised, containing malicious code that poses significant security risks to applications utilizing it.
Vulnerability Detail
The vulnerability in the frontend-auth-client package stems from the inclusion of malicious code that can potentially compromise user data and application integrity. This issue originated from the package's codebase, which was found to be tampered with, allowing unauthorized access and manipulation of sensitive information. The ramifications of this vulnerability could include data breaches, unauthorized access to user accounts, and exploitation of application functionalities.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall frontend-auth-clientIf 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 workaround, consider removing the frontend-auth-client package from your project until a secure version is available. You can do this by executing: npm uninstall frontend-auth-client. Alternatively, you may explore other authentication libraries that do not have known vulnerabilities.
Conclusion
The frontend-auth-client package has been identified as containing malicious code, posing serious security risks to applications that utilize it. It is crucial to update the package to a secure version or consider alternative solutions to mitigate these risks effectively.
See every vulnerability recorded for frontend-auth-client →
FAQ
The malicious code can lead to unauthorized access and manipulation of user data, posing significant security threats.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If immediate updates are not possible, consider removing the package or using alternative libraries until a secure version is released.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities using just your package-lock.json file.
Failure to address this vulnerability could result in data breaches, unauthorized access to user accounts, and exploitation of your application.
