Malicious Code Vulnerability in flexiconf: A Critical Security Risk

flexiconf Updated 02 Oct 2025

Summary

31/07/2025
CRITICAL
No i
Critical
Not published

MAL-2025-6507: Malicious code in flexiconf (PyPI). Affects flexiconf versions 0.0.1. No fix is published. How to fix ↓

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Background

flexiconf is a Python package available on PyPI that is designed to facilitate configuration management in applications. It allows developers to manage configuration settings in a flexible manner, making it easier to handle different environments and settings. However, a recent vulnerability has been identified that exposes users to potential security risks due to malicious code embedded in the package.

Vulnerability Detail

The vulnerability identified as MAL-2025-6507 involves malicious code present in the flexiconf package, specifically in version 0.0.1. This code can lead to unauthorized access or manipulation of user data, posing significant security threats to applications utilizing this package. The malicious code was discovered by ReversingLabs, highlighting the importance of scrutinizing third-party packages for security flaws.

How To Fix

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

pip uninstall flexiconf

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

As a temporary workaround, users are advised to avoid using the affected version (0.0.1) of flexiconf until a patched version is released. Additionally, consider using alternative configuration management packages that do not have known vulnerabilities.

Conclusion

The discovery of malicious code in the flexiconf package underscores the importance of vigilance when using third-party libraries. Users are encouraged to update their packages promptly and utilize tools like Vulert to monitor for vulnerabilities in their applications.

See every vulnerability recorded for flexiconf →

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FAQ

The vulnerability involves malicious code that can compromise the security of applications using the flexiconf package.

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

It is recommended to stop using version 0.0.1 and update to a patched version as soon as it is available.

The vulnerability was discovered by ReversingLabs, a security research firm specializing in malware analysis.

The malicious code could lead to unauthorized access to sensitive data, manipulation of application behavior, and other security breaches.

How To Fix

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

pip uninstall flexiconf

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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