Malicious Code Injection in casual_landfowl_0xrequest Package

casual_landfowl_0xrequest Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-100280: Malicious code in casual_landfowl_0xrequest (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The casual_landfowl_0xrequest package is part of a broader ecosystem within the npm registry, often associated with token reward campaigns. These packages are designed to enhance developer reputation scores through the automatic generation and publication of derivative packages. However, this package has been identified as containing malicious scripts that compromise its integrity.

Vulnerability Detail

The vulnerability originates from the package's inclusion in a campaign that floods the npm registry with malicious code. The malicious payload modifies the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior not only compromises the security of the package but also pollutes the npm registry, potentially affecting other developers and projects relying on it.

How To Fix

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

npm uninstall casual_landfowl_0xrequest

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 →

Workaround

As a temporary workaround, you can avoid using the casual_landfowl_0xrequest package altogether and look for alternative packages that provide similar functionality without the associated risks.

Conclusion

The casual_landfowl_0xrequest package has been identified as containing malicious code that compromises its integrity and affects the npm registry. It is essential to uninstall this package and monitor your projects for any unusual behavior. Utilizing tools like Vulert can help you stay informed about vulnerabilities in your dependencies.

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FAQ

It is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores through the automatic publication of derivative packages.

The vulnerability can lead to the modification of your project's package.json file, potentially exposing it to further security risks and polluting the npm registry.

You should uninstall the package immediately using 'npm uninstall casual_landfowl_0xrequest' and monitor your project for any unusual behavior.

Yes, 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 your application against known vulnerabilities using the Vulert playground.

You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.

How To Fix

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

npm uninstall casual_landfowl_0xrequest

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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