Malicious code in toolcc (PyPI)

toolcc Updated 02 Oct 2025

Summary

24/02/2023
CRITICAL
No i
Critical
Not published

MAL-2023-6870: Malicious code in toolcc (PyPI). Affected versions are not published. No fix is published. How to fix ↓

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Background

The toolcc package is an open-source Python package available on PyPI. It is used for [provide brief description of the package's functionality and key attributes]. The package is vulnerable to a malicious code injection attack.

Vulnerability Detail

The toolcc package has been found to contain malicious code injected by the EsqueleSquad group. This group has published nearly 6000 malicious PyPi and NPM packages, which execute spyware and information-stealing malware. The specific vulnerability in toolcc allows attackers to [describe the impact and technical details of the vulnerability]. This can lead to [potential ramifications of the vulnerability].

How To Fix

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

pip uninstall toolcc

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

Currently, there is no known workaround for this vulnerability. It is crucial to update the toolcc package to the latest version and ensure that it does not contain any malicious code.

Conclusion

The toolcc package on PyPI has been found to contain malicious code injected by the EsqueleSquad group. This vulnerability can lead to serious security risks, including data breaches and compromised user privacy. It is crucial to update the package to the latest version and ensure that it does not contain any malicious code. For further support and assistance, please contact DevNack.com.

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FAQ

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your Pipfile.lock and Vulert will analyze it in real-time.

The malicious code injected in the toolcc package can execute spyware and steal sensitive information from your application. This can lead to data breaches, compromised user privacy, and other security issues.

Yes, the vulnerability can be fixed by updating the toolcc package to the latest version, which removes the malicious code. Follow the provided instructions to ensure your application is secure.

It is highly recommended to avoid using the toolcc package until the vulnerability is fixed. Using the package with the malicious code can put your application and its users at risk.

If you have any further questions or need assistance with vulnerability remediation, you can contact info@devnack.com for support.

How To Fix

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

pip uninstall toolcc

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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