Malicious Code Detected in saintone Package: A Critical Security Alert

saintone Updated 03 Dec 2025

Summary

15/10/2025
CRITICAL
No i
Critical
Not published

MAL-2025-191862: Malicious code in saintone (PyPI). Affects saintone versions 1.0.0 – 3.0.0. No fix is published. How to fix ↓

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Background

The saintone package, available on PyPI, is designed for various functionalities in Python applications. However, it has been compromised, leading to significant security concerns. This package, which may have been used for legitimate purposes, now poses a risk due to the introduction of malicious code that can execute harmful actions on users' systems.

Vulnerability Detail

The vulnerability originates from a malicious actor identified as kam193, who has embedded code within the saintone package that downloads and executes a known malware executable. This executable is widely recognized as harmful and can compromise user data. Additionally, the malicious code sends results to a Telegram webhook, indicating a clear intent to exfiltrate information. The affected versions of the package are 3.0.0, 2.0.0, and 1.0.0, making it critical for users to be aware of the risks associated with these versions.

How To Fix

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

pip uninstall saintone

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 can remove the saintone package from their environment using the command: pip uninstall saintone. This will prevent any malicious code from executing until a secure version is confirmed.

Conclusion

The discovery of malicious code in the saintone package highlights the importance of vigilance in managing open-source dependencies. Users are urged to take immediate action by updating or removing the affected package to safeguard their systems from potential threats.

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FAQ

The malicious code downloads and executes a known malware executable, which can compromise user systems and data.

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

If you have installed versions 3.0.0, 2.0.0, or 1.0.0 of saintone, you should uninstall the package immediately and check for updates or alternatives.

Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software using just the Pipfile.lock.

Failing to address this vulnerability can lead to data breaches, unauthorized access to sensitive information, and potential damage to your system.

How To Fix

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

pip uninstall saintone

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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