Malicious Code Detected in @zalastax/nolb-react-sw Package
Summary
MAL-2025-13791: Malicious code in @zalastax/nolb-react-sw (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The @zalastax/nolb-react-sw package is an npm library designed for integrating React applications with serverless workflows. It provides developers with tools to streamline the deployment and management of serverless functions within their React projects. However, this package has been identified to contain malicious code, posing a significant risk to users who incorporate it into their applications.
Vulnerability Detail
The vulnerability originates from the inclusion of malicious code within the @zalastax/nolb-react-sw package. This code can potentially compromise the security of applications utilizing this package, leading to unauthorized access, data breaches, or other malicious activities. The issue is particularly concerning as it affects all versions starting from the initial release, making it imperative for users to take immediate action to mitigate the risks associated with this vulnerability.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @zalastax/nolb-react-swIf 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 avoid using the @zalastax/nolb-react-sw package altogether and look for alternative libraries that provide similar functionality without the associated risks.
Conclusion
The discovery of malicious code in the @zalastax/nolb-react-sw package highlights the importance of vigilance when using open-source libraries. Users are urged to take immediate action to remove the affected package and explore alternatives to safeguard their applications.
See every vulnerability recorded for @zalastax/nolb-react-sw →
FAQ
The malicious code can lead to unauthorized access and potential data breaches in applications that utilize this package.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Check your application using the Vulert playground at Vulert Scanner without any signup.
Immediately remove the package from your project and consider using alternative libraries. If a patched version is released, update to that version.
Regularly monitor your dependencies for vulnerabilities using tools like Vulert, and keep your packages updated to the latest versions.
Detailed information can be found in the vulnerability report on GitHub at https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@zalastax/nolb-react-sw/MAL-2025-13791.json.
