Malicious Code Injection in original_lemur_z3n Package
Summary
MAL-2025-122419: Malicious code in original_lemur_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The original_lemur_z3n package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate token rewards through automated publishing scripts. However, it has been identified as containing malicious code that compromises its integrity and the security of applications that depend on it.
Vulnerability Detail
The vulnerability in the original_lemur_z3n package stems from its inclusion in a series of malicious packages that flood the npm registry. These packages are designed to manipulate the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior can lead to the pollution of the npm registry and may compromise the security of applications using this package, as it can introduce untrusted code into the dependency tree.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall original_lemur_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, you can avoid using the original_lemur_z3n package altogether. If it is already included in your project, consider replacing it with a trusted alternative or removing it from your dependencies.
Conclusion
The original_lemur_z3n package poses a significant security risk due to its malicious code that alters package configurations and can lead to untrusted code being executed. It is crucial to remove this package and monitor for updates to ensure the security of your applications.
See every vulnerability recorded for original_lemur_z3n →
FAQ
The original_lemur_z3n package is an npm package associated with the tea.xyz token reward campaign, which has been identified as containing malicious code.
The malicious code modifies your package.json file, potentially introducing untrusted code and compromising the security of your application.
You should remove the original_lemur_z3n package from your project and monitor for any updates or patches that may address the vulnerability.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities. You can check your application using the Vulert playground without any signup.
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