Malicious Code Detected in aystools Package - Security Risk Alert

aystools Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-15251: Malicious code in aystools (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The aystools package is an npm library designed for various utility functions within JavaScript applications. It is commonly used for simplifying tasks in development workflows. 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 aystools 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 harmful actions within the affected systems. The issue was introduced in version 0 and affects all subsequent versions, making it critical for users to take immediate action.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall aystools

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a temporary workaround, consider using alternative packages that provide similar functionality without the associated risks. Always ensure to review the security status of any package before integration.

Conclusion

The discovery of malicious code in the aystools package highlights the importance of regularly reviewing and updating dependencies in software projects. Users are urged to take immediate action to protect their applications from potential threats.

See every vulnerability recorded for aystools →

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FAQ

The aystools package is an npm library used for utility functions 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 without any signup.

Currently, there is no patched version available. It is recommended to uninstall the package until a secure version is released.

Immediately uninstall the aystools package and consider using alternative libraries that do not pose security risks.

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How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall aystools

If 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 →

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