Malicious Code Detected in aws-lambda-authenticator Package
Summary
MAL-2025-15227: Malicious code in aws-lambda-authenticator (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The aws-lambda-authenticator package is an npm library designed to facilitate authentication for AWS Lambda functions. It provides developers with tools to manage user authentication seamlessly. However, it has been identified to contain malicious code, posing significant security risks to applications that utilize this package.
Vulnerability Detail
The aws-lambda-authenticator package has been found to harbor malicious code, which could lead to unauthorized access, data breaches, or other security incidents. This vulnerability originated from the package itself and affects all versions starting from 0. The malicious code can execute harmful actions without the user's consent, potentially compromising sensitive information and application integrity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall aws-lambda-authenticatorIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the aws-lambda-authenticator package altogether and implement your own authentication logic or use a different, trusted library for AWS Lambda authentication.
Conclusion
The aws-lambda-authenticator package has been identified as containing malicious code, posing serious security risks. Users are advised to remove the package and seek alternatives to protect their applications. Regular monitoring for vulnerabilities using tools like Vulert can help maintain application security.
See every vulnerability recorded for aws-lambda-authenticator →
FAQ
It is an npm library used for managing authentication in AWS Lambda functions.
The package contains code that can execute unauthorized actions, potentially leading to data breaches.
You can use Vulert, which monitors open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.
Remove the aws-lambda-authenticator package and consider using a secure alternative for authentication.
Currently, there is no patched version available. It is advisable to remove the package until a secure version is released.
