Malicious Code Detected in @zalastax/nolb-react-pv Package

@zalastax/nolb-react-pv Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-13727: Malicious code in @zalastax/nolb-react-pv (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The @zalastax/nolb-react-pv package is a JavaScript library designed for use in React applications, providing specific functionalities that enhance user experience and application performance. However, it has been identified as containing malicious code, which poses a significant risk to applications that utilize this package.

Vulnerability Detail

The vulnerability stems from the inclusion of malicious code within the @zalastax/nolb-react-pv package. This code can potentially compromise the integrity of applications that depend on it, leading to unauthorized access, data breaches, or other malicious activities. The issue was introduced in version 0 and affects all subsequent versions, making it critical for users to address this vulnerability promptly.

How To Fix

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

npm uninstall @zalastax/nolb-react-pv

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 →

Workaround

As a temporary workaround, you can replace the functionality provided by the @zalastax/nolb-react-pv package with alternative libraries that offer similar features without the associated risks. Consider using well-established packages that have a strong community and regular maintenance.

Conclusion

The discovery of malicious code in the @zalastax/nolb-react-pv package highlights the importance of vigilance in managing open-source dependencies. Users are urged to take immediate action to protect their applications by uninstalling the affected package and seeking alternatives.

See every vulnerability recorded for @zalastax/nolb-react-pv →

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FAQ

The malicious code can perform unauthorized actions within your application, potentially leading to data theft or system compromise.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without needing to sign up.

Immediately uninstall the package and look for alternative libraries to replace its functionality.

Currently, there is no patched version available. Users should uninstall the package until a secure version is released.

Regularly audit your dependencies, use tools like Vulert for monitoring, and stay informed about security updates for the packages you use.

How To Fix

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

npm uninstall @zalastax/nolb-react-pv

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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