Malicious Code Injection in right_falcon_z3n Package
Summary
MAL-2025-90130: Malicious code in right_falcon_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The right_falcon_z3n package is part of the npm ecosystem, which is widely used for JavaScript package management. This package has been identified as part of a malicious campaign that aims to exploit developer reputation systems by flooding the npm registry with derivative packages. The malicious nature of this package compromises its integrity and poses significant risks to developers and their projects.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the right_falcon_z3n package. This code is designed to modify the package.json file by removing private flags and altering version numbers. Additionally, it generates random package names, often themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This behavior not only undermines the integrity of the npm ecosystem but also can lead to unintentional use of compromised packages by developers.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall right_falcon_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, avoid using the right_falcon_z3n package altogether. If you have dependencies that rely on it, consider finding alternative packages that provide similar functionality without the associated risks.
Conclusion
The right_falcon_z3n package poses a significant security risk due to its malicious code designed to manipulate package metadata and pollute the npm registry. Developers are advised to uninstall this package and remain vigilant about the packages they use in their projects.
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FAQ
The right_falcon_z3n package is an npm package that has been identified as part of a malicious campaign to exploit developer reputation systems.
The vulnerability can lead to the unintentional use of compromised packages, which may introduce security risks and instability to your project.
You should uninstall the right_falcon_z3n package immediately using the command npm uninstall right_falcon_z3n.
Currently, there are no safe or patched versions of the right_falcon_z3n package available.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
