Critical Malicious Code Vulnerability in vite-dynachunk Package

vite-dynachunk Updated 26 Nov 2025

Summary

26/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-191474: Malicious code in vite-dynachunk (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

vite-dynachunk is an npm package designed to enhance the development experience by dynamically chunking modules in Vite applications. It aims to optimize loading times and improve performance during development. However, this package has been identified as containing malicious code, posing significant security risks to any system where it is installed.

Vulnerability Detail

The vulnerability stems from the presence of embedded malicious code within the vite-dynachunk package. This code can compromise the entire system, allowing unauthorized access to sensitive information such as secrets and keys. The malicious nature of this code has been confirmed by security researchers, indicating that any computer running this package should be considered fully compromised. The ramifications include potential data breaches and loss of control over the affected systems.

How To Fix

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

npm uninstall vite-dynachunk

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

There are no effective workarounds for this vulnerability. The only safe course of action is to remove the package entirely and secure the system.

Conclusion

The vite-dynachunk package has been identified as containing malicious code that compromises system security. Immediate action is required to uninstall the package and secure any sensitive information. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.

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FAQ

You should uninstall the vite-dynachunk package immediately and rotate any sensitive information stored on the affected system.

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.

Keeping this package installed poses significant risks, including unauthorized access to sensitive data and potential system compromise.

No, there is currently no patched version available for vite-dynachunk. The only solution is to uninstall the package.

Vulert monitors and alerts for open-source vulnerabilities in your software using just the package-lock.json file, providing real-time insights without requiring code access.

How To Fix

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

npm uninstall vite-dynachunk

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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