Malicious Code Injection in nasrul-poke99: A Threat to npm Ecosystem

nasrul-poke99 Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-161994: Malicious code in nasrul-poke99 (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The nasrul-poke99 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 sharing of code. However, it has been identified as part of a malicious campaign that aims to exploit the npm registry by flooding it with derivative packages that can harm developers' reputations and the integrity of the registry itself.

Vulnerability Detail

The vulnerability in nasrul-poke99 stems from its association with a malicious campaign that modifies package.json files to remove private flags and change version numbers. It generates random package names and continuously republishes these variants, leading to pollution of the npm registry. This not only affects the reputation of developers but also poses a risk of unintentional dependency on malicious code for applications relying on these packages.

How To Fix

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

npm uninstall nasrul-poke99

If 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 nasrul-poke99 package and any packages that depend on it. Additionally, regularly audit your npm packages using 'npm audit' to identify and address vulnerabilities.

Conclusion

The nasrul-poke99 package poses a significant threat to the npm ecosystem due to its malicious nature. It is crucial for developers to be vigilant and take immediate action to remove this package and monitor their dependencies for vulnerabilities to maintain the integrity of their applications.

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FAQ

nasrul-poke99 is an npm package that has been identified as part of a malicious campaign to flood the npm registry with harmful packages.

If your application depends on nasrul-poke99, it may inadvertently include malicious code that can compromise its security and integrity.

You should uninstall the package immediately using 'npm uninstall nasrul-poke99' and check for any other affected packages.

You can use tools like Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just 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.

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How To Fix

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

npm uninstall nasrul-poke99

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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