Malicious Code Vulnerability in northern_python-appteadev: Exploiting npm for Token Rewards

northern_python-appteadev Updated 18 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-106380: Malicious code in northern_python-appteadev (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The package northern_python-appteadev is part of the npm ecosystem, primarily used for JavaScript development. It has been identified as part of a malicious campaign that aims to exploit the npm registry by flooding it with derivative packages. This package is associated with the tea.xyz token reward campaign, which incentivizes developers to inflate their reputation scores through the creation of numerous fake packages.

Vulnerability Detail

This vulnerability originates from the malicious intent behind the northern_python-appteadev package, which contains scripts designed to automatically generate and publish derivative packages with randomized names. These scripts modify the package.json file to remove private flags, alter version numbers, and continuously republish variants, leading to pollution of the npm registry. The ramifications include potential security risks for developers who may unknowingly install these malicious packages, as well as damage to the integrity of the npm ecosystem.

How To Fix

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

npm uninstall northern_python-appteadev

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, avoid using the northern_python-appteadev package and consider using alternative packages that provide similar functionality without the associated risks.

Conclusion

The northern_python-appteadev package poses a significant security risk due to its malicious intent to exploit the npm registry. It is crucial for developers to be vigilant and remove any affected packages from their projects. Utilizing tools like Vulert can help in monitoring and managing open-source vulnerabilities effectively.

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FAQ

It is an npm package that has been identified as part of a malicious campaign to exploit the npm registry.

If you have this package installed, it may lead to security risks and compromise the integrity of your project by introducing malicious code.

You should uninstall the package immediately and check for any alternative packages that do not pose security risks.

You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities without requiring code access.

Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without signing up.

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How To Fix

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

npm uninstall northern_python-appteadev

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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