Malicious Code Injection in modirai-fian-jinanu: A Threat to npm Packages

modirai-fian-jinanu Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-160602: Malicious code in modirai-fian-jinanu (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The modirai-fian-jinanu package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate the development and deployment of applications by providing reusable code. However, it has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the automatic generation and publication of derivative packages.

Vulnerability Detail

The vulnerability in modirai-fian-jinanu stems from its association with a malicious campaign that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is designed to pollute the npm registry and can lead to the unintentional installation of compromised packages by developers. The malicious payload can compromise the integrity of applications relying on this package, potentially leading to security breaches or data loss.

How To Fix

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

npm uninstall modirai-fian-jinanu

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 measure, avoid using the modirai-fian-jinanu package and look for alternative packages that provide similar functionality without the associated risks. Additionally, regularly audit your project's dependencies to identify and remove any potentially malicious packages.

Conclusion

The modirai-fian-jinanu package poses a significant security risk due to its malicious code injection aimed at manipulating the npm registry. It is essential for developers to be vigilant about their dependencies and take immediate action to remove any affected packages. Utilizing tools like Vulert can help in monitoring and managing open-source vulnerabilities effectively.

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FAQ

modirai-fian-jinanu is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores through the automatic generation of derivative packages.

The vulnerability can lead to the installation of compromised packages, which may introduce security risks or data loss in your application.

If you have installed modirai-fian-jinanu, you should uninstall it immediately using 'npm uninstall modirai-fian-jinanu' and consider using alternative packages.

You can use tools like Vulert, which monitors and alerts you in real-time for open-source vulnerabilities in your software using just package-lock.json.

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

How To Fix

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

npm uninstall modirai-fian-jinanu

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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