Malicious Code Injection in polymedarnan-nufatim-nuts Package
Summary
MAL-2025-164400: Malicious code in polymedarnan-nufatim-nuts (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The polymedarnan-nufatim-nuts package is part of the npm ecosystem, typically used for various JavaScript applications. 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. This package, like others in the campaign, contains scripts that manipulate its own metadata and continuously republish variants to the npm registry, leading to potential security risks for users.
Vulnerability Detail
The vulnerability originates from the package being part of a malicious campaign that floods the npm registry with derivative packages. The malicious payload modifies the package.json file to remove private flags, alters version numbers, and generates random package names, which can lead to reputation inflation and registry pollution. This behavior can compromise the integrity of the npm ecosystem and potentially expose users to further security risks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall polymedarnan-nufatim-nutsIf 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 prevent the installation of this package by using npm's package-lock.json to monitor dependencies. Ensure that your project does not include polymedarnan-nufatim-nuts in its dependencies. You can also use the following command to uninstall it: npm uninstall polymedarnan-nufatim-nuts.
Conclusion
The polymedarnan-nufatim-nuts package poses a significant risk due to its malicious behavior of modifying package metadata and republishing itself. Users are advised to remove this package and monitor their applications for vulnerabilities using tools like Vulert.
See every vulnerability recorded for polymedarnan-nufatim-nuts →
FAQ
It is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and may expose your application to further security risks.
You should remove the package from your project and monitor for any updates or patches.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without requiring any signup.
