Critical Malicious Code Vulnerability in pydantic-settings Package
Summary
MAL-2025-6951: Malicious code in pydantic-settings (npm). Affects pydantic-settings versions >= 13.8.9. No fix is published. How to fix ↓
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Background
The pydantic-settings package is an npm library designed to facilitate the management of application settings using Pydantic models. It allows developers to define and validate settings in a structured manner, enhancing the reliability and maintainability of applications. However, this package has been identified to communicate with a domain associated with malicious activity, posing a significant security risk to applications that utilize it.
Vulnerability Detail
The vulnerability arises from the package's communication with a malicious domain, which could lead to data exfiltration, unauthorized access, or other malicious activities. This issue was introduced in version 13.8.9, and it is critical for users of this package to be aware of the potential ramifications, including compromised application integrity and user data security.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall pydantic-settingsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, consider removing the pydantic-settings package from your project until a secure version is available. You can do this by executing: npm uninstall pydantic-settings.
Conclusion
The pydantic-settings package has a critical vulnerability due to its communication with a malicious domain. Users are urged to update to a secure version or remove the package temporarily to safeguard their applications. Utilizing tools like Vulert can help in monitoring and managing such vulnerabilities effectively.
See every vulnerability recorded for pydantic-settings →
FAQ
The vulnerability involves the package communicating with a domain linked to malicious activities, which can compromise application security.
You can use Vulert, which monitors open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.
If an immediate update is not possible, consider removing the package temporarily as a workaround until a secure version is available.
Yes, you can use Vulert to monitor your project for vulnerabilities in real-time using just the package-lock.json file.
Failing to address this vulnerability could lead to data breaches, unauthorized access to sensitive information, and overall compromise of application integrity.
Related vulnerabilities
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