Malicious Code Vulnerability in serious_eagle_z3n Package
Summary
MAL-2025-96531: Malicious code in serious_eagle_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The serious_eagle_z3n 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 of applications by providing reusable code components. However, it has been identified as part of a malicious campaign that aims to manipulate the npm registry and inflate developer reputation scores through the publication of derivative packages.
Vulnerability Detail
The vulnerability originates from the serious_eagle_z3n package being associated with a token reward campaign that floods npm with malicious packages. These packages contain scripts that automatically publish variants with altered package.json files, removing private flags and changing version numbers. This behavior can lead to pollution of the npm registry, making it difficult for developers to find legitimate packages and potentially introducing security risks into applications that depend on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall serious_eagle_z3nIf 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 serious_eagle_z3n package and look for alternative packages that provide similar functionality without the associated risks. Additionally, ensure that your package-lock.json file is monitored for any changes using tools like Vulert, which can alert you to vulnerabilities in real-time.
Conclusion
The serious_eagle_z3n package poses a significant risk due to its association with malicious activities aimed at manipulating the npm registry. It is crucial for developers to remove this package from their projects and utilize monitoring tools like Vulert to stay informed about potential vulnerabilities in their dependencies.
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FAQ
The serious_eagle_z3n package is an npm package that has been identified as part of a malicious campaign to manipulate the npm registry.
The vulnerability can lead to the introduction of malicious code into your application, as well as pollution of the npm registry, making it harder to find legitimate packages.
You should uninstall the serious_eagle_z3n package immediately using the command npm uninstall serious_eagle_z3n.
Yes, you can use Vulert, which monitors your package-lock.json file for vulnerabilities and alerts you in real-time.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
