Malicious Code Execution in system-integration Package

system-integration Updated 25 Jan 2026

Summary

25/01/2026
CRITICAL
No i
Critical
Not published

MAL-2026-499: Malicious code in system-integration (PyPI). Affects system-integration versions 1.0.0 – 1.0.1. No fix is published. How to fix ↓

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Background

The system-integration package, available on PyPI, is designed to facilitate the integration of various systems and services in Python applications. It aims to streamline workflows by providing a set of tools and functionalities that enhance interoperability. However, this package has been found to contain a serious vulnerability that allows for the execution of malicious code, posing significant risks to users and their systems.

Vulnerability Detail

The vulnerability originates from a malicious modification made by the package maintainer, kam193. When the system-integration module is imported, it downloads and executes a highly obfuscated remote script from a malicious server. This behavior is indicative of a malware campaign, specifically targeting users to execute harmful scripts that could lead to data theft or system compromise. The obfuscation of the script makes it difficult for users to detect the malicious activity, further exacerbating the risk.

How To Fix

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

pip uninstall system-integration

If 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 can avoid importing the system-integration package until a patch is applied. Additionally, users can monitor their network activity for any connections to the malicious domains identified in the vulnerability report.

Conclusion

The system-integration package has been compromised, leading to a serious vulnerability that allows for the execution of malicious code. Users are strongly advised to update their packages and monitor their systems for any suspicious activity. Utilizing tools like Vulert can help in identifying vulnerabilities in real-time.

See every vulnerability recorded for system-integration →

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FAQ

The vulnerability involves the execution of malicious code that downloads and runs a remote script when the package is imported.

You can check if your application is affected by using the Vulert playground at Vulert Scanner, which allows you to monitor for open-source vulnerabilities without requiring signup.

If you have imported the package, you should immediately remove it from your environment and update to a patched version if available.

Yes, the malicious domains associated with this vulnerability include juvenile-server.vercel.app.

The consequences can include unauthorized access to sensitive data, system compromise, and the execution of further malicious activities on the affected system.

How To Fix

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

pip uninstall system-integration

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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