Critical Malicious Code Vulnerability in @voiceflow/sdk-runtime Package
Summary
MAL-2025-191370: Malicious code in @voiceflow/sdk-runtime (npm). Affects @voiceflow/sdk-runtime versions 1.43.1 – 1.43.2. No fix is published. How to fix ↓
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Background
The @voiceflow/sdk-runtime package is a JavaScript library used for building voice applications. It provides developers with tools to create and manage voice interactions seamlessly. However, this package has been compromised, making it susceptible to a serious security threat that can affect users' credentials and system integrity.
Vulnerability Detail
The vulnerability originates from a malicious NPM worm known as Sha1-Hulud: The Second Coming. This worm injects malicious code into the @voiceflow/sdk-runtime package, which can steal tokens and credentials from users. The stolen data is then published to GitHub, potentially exposing sensitive information. Furthermore, the worm can propagate itself to other NPM packages owned by the user and establish persistence through GitHub actions. In severe cases, it may even 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/sdk-runtimeIf 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 are advised to remove the @voiceflow/sdk-runtime package from their projects until they can update to a secure version. This can be done using the following command: npm uninstall @voiceflow/sdk-runtime.
Conclusion
The @voiceflow/sdk-runtime package has been compromised by a malicious worm that poses significant security risks. It is crucial for users to update to the latest version to protect their applications and sensitive data. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.
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FAQ
The Sha1-Hulud worm is a malicious NPM package that compromises other packages by injecting harmful code, stealing user credentials, and propagating itself across NPM repositories.
You can check if your application is affected by using Vulert, which monitors open-source vulnerabilities in real-time. Visit Vulert Scanner to analyze your package-lock.json without any signup.
If you suspect that your credentials have been compromised, immediately revoke any affected tokens and change your passwords. Additionally, update the @voiceflow/sdk-runtime package as soon as possible.
To prevent future vulnerabilities, regularly update your dependencies, use tools like Vulert for monitoring, and conduct security audits on your codebase.
Failing to address this vulnerability can lead to unauthorized access to sensitive information, potential data loss, and damage to your application's reputation.
