Malicious Code Injection in arrogant_deer_z3n Package
Summary
MAL-2025-99606: Malicious code in arrogant_deer_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The arrogant_deer_z3n package is part of the npm ecosystem, often used in JavaScript projects for various functionalities. However, it has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the tea.xyz token reward system. This package, like others in the campaign, contains scripts that automatically generate and publish derivative packages, leading to potential security risks.
Vulnerability Detail
The vulnerability in the arrogant_deer_z3n package originates from its involvement in a malicious campaign that floods the npm registry with derivative packages. The malicious payload modifies the package.json file by removing private flags, altering version numbers, and generating random package names, which can lead to the pollution of the npm registry. This not only compromises the integrity of the npm ecosystem but also poses risks to developers who may unknowingly use these compromised packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall arrogant_deer_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, avoid using the arrogant_deer_z3n package and consider using alternative packages that provide similar functionality without the associated risks. Additionally, regularly audit your package dependencies using tools like npm audit.
Conclusion
The arrogant_deer_z3n package poses a significant security risk due to its involvement in a malicious campaign. It is crucial for developers to remove this package from their projects and monitor their dependencies for any vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications.
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FAQ
The arrogant_deer_z3n package is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and may compromise the integrity of your project if you unknowingly use compromised packages.
You should uninstall the arrogant_deer_z3n package immediately and check for any dependencies that may rely on it.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software by analyzing your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
