Malicious Code Injection in modirai-igo-jaimmgi Package: A Threat to npm Ecosystem
Summary
MAL-2025-160706: Malicious code in modirai-igo-jaimmgi (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The modirai-igo-jaimmgi package is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to automate the publication of derivative packages with randomized names, which can inflate developer reputation scores for token rewards. The malicious nature of this package poses a significant risk to the integrity of the npm registry and the security of applications relying on it.
Vulnerability Detail
The vulnerability stems from the package's malicious code that modifies the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior leads to the continuous republishing of variants, which pollutes the npm registry and can compromise the security of applications that inadvertently depend on these malicious packages. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which aimed to exploit the npm ecosystem for fraudulent gain.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall modirai-igo-jaimmgiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the modirai-igo-jaimmgi package and any other packages associated with the tea.xyz token reward campaign. Regularly audit your package.json and package-lock.json files to identify and remove any suspicious packages.
Conclusion
The modirai-igo-jaimmgi package poses a significant threat to the npm ecosystem due to its malicious code that modifies package metadata and repopulates the registry with harmful variants. It is essential to remove this package and monitor your dependencies to maintain the security of your applications.
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FAQ
modirai-igo-jaimmgi is an npm package that is part of a malicious campaign aimed at inflating developer reputation scores through automated publishing of derivative packages.
The vulnerability can lead to the inclusion of malicious code in your application, potentially compromising its security and integrity.
You should immediately uninstall the modirai-igo-jaimmgi package using the command npm uninstall modirai-igo-jaimmgi and audit your project for any other malicious packages.
You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time. You can check your application for vulnerabilities using the Vulert playground at Vulert Scanner without any signup.
There are no patches available for the modirai-igo-jaimmgi package as it is recommended to remove it entirely from your project.
