Malicious code in studyver (PyPI)

studyver Updated 02 Oct 2025

Summary

25/02/2023
CRITICAL
No i
Critical
Not published

MAL-2023-6837: Malicious code in studyver (PyPI). Affected versions are not published. No fix is published. How to fix ↓

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Background

Studyver is a Python package available on PyPI that is used for studying and analyzing data. It provides various functions and utilities for data manipulation, visualization, and statistical analysis. However, the package has been found to contain malicious code, which poses a significant security risk to users who install and use it.

Vulnerability Detail

The studyver package from PyPI has been compromised by the EsqueleSquad group, who published nearly 6000 malicious PyPi and NPM packages. These packages execute spyware and information-stealing malware. The specific vulnerability in studyver allows the execution of malicious code, potentially leading to unauthorized access, data theft, and other malicious activities. The malicious code can be triggered when using certain functions or features of the package.

How To Fix

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

pip uninstall studyver

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

There is no known workaround for this vulnerability. It is essential to remove the studyver package and take appropriate security measures to protect your system.

Conclusion

The studyver package from PyPI has been compromised and contains malicious code. It is crucial to remove the package from your system and take appropriate security measures to protect your data and prevent any potential unauthorized access or data theft. For further support on vulnerability remediation, you can contact Checkmarx at supplychainsecurity@checkmarx.com.

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FAQ

You can use vulnerability monitoring tools like Vulert to check if your system is affected by this vulnerability. Vulert analyzes your Pipfile.lock and alerts you in real-time for open-source vulnerabilities in your software.

No, updating studyver to the latest version will not fix the vulnerability. The malicious code is present in the package itself, and it is recommended to remove it entirely from your system.

The potential risks of this vulnerability include unauthorized access to sensitive data, data theft, and the execution of malicious code on the affected system. It can lead to significant security breaches and compromise the integrity and confidentiality of your data.

While there may not be specific evidence of attacks exploiting this vulnerability in the studyver package, the presence of malicious code indicates a significant security risk. It is crucial to take immediate action to remove the package and protect your system.

If you have discovered this vulnerability or need further assistance, you can contact the finder, Checkmarx, at supplychainsecurity@checkmarx.com. They can provide additional guidance and support for vulnerability remediation.

How To Fix

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

pip uninstall studyver

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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