Malicious Code Exploit in objective_lion_z3n Package: npm Vulnerability Summary

objective_lion_z3n Updated 27 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-88962: Malicious code in objective_lion_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The objective_lion_z3n package is part of the npm ecosystem and has been identified as part of a malicious campaign associated with the tea.xyz token reward initiative. This package is designed to automate the generation and publication of derivative packages, which can inflate developer reputation scores in exchange for token rewards. Its functionality is compromised by malicious scripts that manipulate package metadata.

Vulnerability Detail

The vulnerability in the objective_lion_z3n package originates from its association with a malicious campaign that floods the npm registry with derivative packages. The malicious payload modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the pollution of the npm registry. This can result in compromised developer reputations and potential security risks for applications relying on these packages.

How To Fix

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

npm uninstall objective_lion_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 temporarily remove the package from your project dependencies by executing the command: npm uninstall objective_lion_z3n. This will prevent any malicious scripts from executing in your environment.

Conclusion

The objective_lion_z3n package poses a significant risk due to its malicious code designed to manipulate npm registry entries. Immediate action is required to remove the package and safeguard your application from potential threats. Utilizing tools like Vulert can help in monitoring and preventing future vulnerabilities.

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FAQ

The objective_lion_z3n package is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores through automated package publishing.

This vulnerability can lead to the pollution of the npm registry, potentially compromising the integrity of your application and affecting its dependencies.

You should uninstall the objective_lion_z3n package immediately and monitor for any updates or patches that may be released.

Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just the package-lock.json file. You can check your application for vulnerabilities using the Vulert playground without any signup.

Regularly audit your dependencies, keep your packages updated, and utilize tools like Vulert to monitor for vulnerabilities in real-time.

How To Fix

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

npm uninstall objective_lion_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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