Malicious Code Injection in xaver-mie80-miaww Package - npm Vulnerability

xaver-mie80-miaww Updated 27 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-92392: Malicious code in xaver-mie80-miaww (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The xaver-mie80-miaww package is part of the npm ecosystem, which is widely used for managing JavaScript packages. This package has been identified as part of a malicious campaign that aims to exploit the npm registry by flooding it with derivative packages. These packages are designed to inflate developer reputation scores through automated publishing scripts, which can lead to significant issues within the ecosystem.

Vulnerability Detail

The vulnerability in the xaver-mie80-miaww package stems from its association with the tea.xyz token reward campaign. It contains malicious scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. This behavior not only compromises the integrity of the npm registry but also poses a risk to developers who may unknowingly use these compromised packages, leading to potential security breaches and loss of trust in the ecosystem.

How To Fix

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

npm uninstall xaver-mie80-miaww

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, avoid using the xaver-mie80-miaww package and any other packages that may be associated with the tea.xyz token reward campaign. Regularly audit your dependencies to ensure that no malicious packages are included in your project.

Conclusion

The xaver-mie80-miaww package poses a significant risk due to its malicious behavior aimed at exploiting the npm registry. It is crucial for developers to be vigilant about the packages they use and to regularly audit their dependencies to maintain the integrity of their projects.

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FAQ

The xaver-mie80-miaww package is an npm package that has been identified as part of a malicious campaign to exploit the npm registry.

Using the xaver-mie80-miaww package can lead to security breaches, as it modifies your package.json file and can introduce other malicious packages into your project.

If you have installed the xaver-mie80-miaww package, you should uninstall it immediately using the command npm uninstall xaver-mie80-miaww.

You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities. You can check your application using the Vulert playground without any signup.

There are no patches available for the xaver-mie80-miaww package as it is a malicious package. The best course of action is to remove it from your project.

How To Fix

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

npm uninstall xaver-mie80-miaww

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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