Malicious Code Injection in breakable_landfowl_z3n: A Threat to npm Packages

breakable_landfowl_z3n Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-100088: Malicious code in breakable_landfowl_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The package 'breakable_landfowl_z3n' is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. It is designed to generate and publish derivative packages with randomized names, which can inflate developer reputation scores for token rewards. This behavior makes it susceptible to malicious exploitation, as it can modify critical files and republish harmful variants.

Vulnerability Detail

The vulnerability in 'breakable_landfowl_z3n' originates from its malicious payload that modifies the package.json file to remove private flags and change version numbers. It generates random package names and continuously republishes these variants, leading to pollution of the npm registry. This can result in compromised developer environments and potential security risks for applications relying on this package.

How To Fix

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

npm uninstall breakable_landfowl_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 →

Workaround

As a workaround, you can monitor your project's dependencies using tools like Vulert. By utilizing Vulert, you can check if your application is affected by this vulnerability without requiring access to the code or installation. You can use the Vulert playground at https://vulert.com/scanner to analyze your package-lock.json file for vulnerabilities.

Conclusion

The 'breakable_landfowl_z3n' package poses a significant risk due to its malicious code that alters package files and repackages npm modules. It is crucial to remove this package and monitor your dependencies to maintain the security of your application.

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FAQ

The vulnerability involves malicious code that alters package.json files and repackages npm modules, leading to potential security risks.

You can use Vulert to analyze your package-lock.json file for vulnerabilities related to breakable_landfowl_z3n.

Remove the breakable_landfowl_z3n package and monitor your dependencies for any further vulnerabilities.

Currently, there is no specific patch for breakable_landfowl_z3n, but you should uninstall it and monitor for updates.

Regularly audit your dependencies and utilize tools like Vulert to stay informed about potential vulnerabilities.

How To Fix

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

npm uninstall breakable_landfowl_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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