Malicious Code Injection in oral_rat_z3n Package: npm Vulnerability Overview

oral_rat_z3n Updated 18 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-106765: Malicious code in oral_rat_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The oral_rat_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 the npm registry by flooding it with derivative packages. These packages are designed to inflate developer reputation scores through automated scripts, which can lead to significant pollution of the registry and potential security risks for developers using these packages.

Vulnerability Detail

The vulnerability stems from the presence of malicious code within the oral_rat_z3n package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, primarily themed around Indonesian culture. The malicious payload continuously republishes these variants, which can lead to a compromised npm registry and affect developers relying on these packages for their projects. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which aims to exploit the npm ecosystem for token rewards.

How To Fix

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

npm uninstall oral_rat_z3n

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 oral_rat_z3n package and any packages that depend on it. Additionally, consider using npm audit to identify and address vulnerabilities in your project's dependencies.

Conclusion

The oral_rat_z3n package poses a significant security risk due to its malicious code designed to exploit the npm registry. Developers are advised to remove this package and monitor their dependencies for vulnerabilities. Utilizing tools like npm audit and Vulert can help maintain the security of your projects.

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FAQ

The oral_rat_z3n package is an npm package that has been identified as part of a malicious campaign to exploit the npm registry.

The malicious code can modify your package.json file, remove private flags, and republish variants, potentially compromising your project's integrity.

You should remove the oral_rat_z3n package from your project and check for any dependencies that may have been affected.

You can use tools like npm audit to check for vulnerabilities in your dependencies. Additionally, Vulert can monitor your package-lock.json for real-time alerts on open-source vulnerabilities.

Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.

How To Fix

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

npm uninstall oral_rat_z3n

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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