Critical Malicious Code Vulnerability in @voiceflow/nestjs-timeout Package

@voiceflow/nestjs-timeout Updated 25 Nov 2025

Summary

25/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-191361: Malicious code in @voiceflow/nestjs-timeout (npm). Affects @voiceflow/nestjs-timeout versions 1.3.1 – 1.3.2. No fix is published. How to fix ↓

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Background

The @voiceflow/nestjs-timeout package is an npm library designed to provide timeout functionality for NestJS applications. It allows developers to set timeouts for asynchronous operations, enhancing the reliability and performance of applications. However, this package has been compromised, making it susceptible to a severe security threat.

Vulnerability Detail

This vulnerability originates from the Sha1-Hulud: The Second Coming NPM worm, which has infected the @voiceflow/nestjs-timeout package. The malicious code embedded in this package is designed to steal tokens and credentials from users and publish them to GitHub. Additionally, the worm can propagate itself to other npm packages owned by the user and establish persistence through a GitHub action. There is also a risk that the worm may destroy the user's home directory, leading to significant data loss.

How To Fix

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

npm uninstall @voiceflow/nestjs-timeout

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, you may consider removing the @voiceflow/nestjs-timeout package from your project until a secure version is confirmed. You can do this by executing the command: npm uninstall @voiceflow/nestjs-timeout.

Conclusion

The @voiceflow/nestjs-timeout package has been compromised by a malicious worm that poses serious security risks, including credential theft and potential data loss. It is essential to take immediate action by updating or removing the package to protect your application.

See every vulnerability recorded for @voiceflow/nestjs-timeout →

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FAQ

The vulnerability involves malicious code that steals sensitive information and can propagate itself to other packages.

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

You should immediately update the package to the latest version or remove it from your project to mitigate the risk.

Yes, the worm may destroy the user's home directory, resulting in potential data loss.

Regularly monitor your dependencies for vulnerabilities using tools like Vulert and keep your packages updated.

How To Fix

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

npm uninstall @voiceflow/nestjs-timeout

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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