Malicious Code Injection in aymenmousier Package: npm Vulnerability
Summary
MAL-2025-170937: Malicious code in aymenmousier (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The aymenmousier package is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, which aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package compromises the integrity of the npm registry by introducing harmful scripts.
Vulnerability Detail
The vulnerability in the aymenmousier package originates from its design to include autopublish scripts that modify the package.json file. This modification removes private flags, alters version numbers, and generates random package names, leading to the continuous republishing of variants. The ramifications include pollution of the npm registry, potential security risks for developers using these packages, and a compromised ecosystem due to the proliferation of malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall aymenmousierIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can avoid using the aymenmousier package and monitor your project for any dependencies that may indirectly include it. Regularly audit your package-lock.json file to identify and remove any malicious packages.
Conclusion
The aymenmousier package poses a significant risk due to its malicious code designed to manipulate the npm registry. It is crucial for developers to remove this package and monitor their projects for any vulnerabilities to maintain a secure development environment.
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FAQ
The aymenmousier package is an npm package associated with the tea.xyz token reward campaign, designed to inflate developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and introduce malicious code into your project, potentially compromising security.
You should uninstall the aymenmousier package immediately using 'npm uninstall aymenmousier' and audit your project for any other affected dependencies.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software by analyzing your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
