Critical Malicious Code Vulnerability in @voiceflow/encryption Package
Summary
MAL-2025-191344: Malicious code in @voiceflow/encryption (npm). Affects @voiceflow/encryption versions 0.3.2 – 0.3.3. No fix is published. How to fix ↓
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Background
The @voiceflow/encryption package is a Node.js library designed to provide encryption functionalities for applications. It is widely used in projects that require secure data handling. However, this package has been compromised, making it susceptible to severe security threats that can affect users' credentials and data integrity.
Vulnerability Detail
The vulnerability stems from a compromise by the Sha1-Hulud: The Second Coming NPM worm, which has infected versions 0.3.2 and 0.3.3 of the @voiceflow/encryption package. This malicious code is designed to steal tokens and credentials, publishing them to GitHub. Additionally, the worm can propagate itself to other NPM packages owned by the user and may establish persistence through a GitHub action. There is also a risk that it could 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/encryptionIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can remove the affected package from your project until a secure version is released. Use the following command to uninstall the package: npm uninstall @voiceflow/encryption. Additionally, consider using alternative encryption libraries that are not affected by this vulnerability.
Conclusion
The @voiceflow/encryption package has been compromised by a malicious worm, posing significant risks to users' credentials and data. It is essential to take immediate action by updating or removing the affected package and monitoring your applications for vulnerabilities using tools like Vulert.
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FAQ
The malicious code can steal sensitive tokens and credentials, potentially leading to unauthorized access to user accounts and data breaches.
You can use Vulert, a tool that monitors and alerts for open-source vulnerabilities in real-time. Visit the Vulert playground at Vulert Scanner to check if your application is affected without any signup.
If you have installed versions 0.3.2 or 0.3.3 of the package, it is recommended to uninstall them immediately and update to the latest secure version.
Yes, the worm can propagate itself to other NPM packages owned by the user, increasing the risk of widespread compromise.
Yes, the malicious code may also destroy the user's home directory, leading to potential data loss.
