Malicious Code Injection in minimum_leopard_z3n Package
Summary
MAL-2025-88438: Malicious code in minimum_leopard_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The minimum_leopard_z3n package is part of the npm ecosystem, often utilized in JavaScript projects for various functionalities. However, it has been identified as part of a malicious campaign that floods the npm registry with derivative packages. This package is designed to manipulate its own metadata and publish variants to inflate reputation scores for token rewards, making it a significant threat to developers and the integrity of the npm registry.
Vulnerability Detail
The vulnerability in the minimum_leopard_z3n package stems from its involvement in a malicious campaign that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, which pollutes the npm registry and can compromise the security and reliability of dependent projects. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which employs autopublish scripts to automate the creation of these malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall minimum_leopard_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can manually delete the minimum_leopard_z3n package from your project by running the following command: npm uninstall minimum_leopard_z3n. Additionally, ensure that your package.json file does not reference this package to prevent reinstallation.
Conclusion
The minimum_leopard_z3n package poses a significant risk due to its malicious behavior of modifying package metadata and republishing variants. It is crucial for developers to remove this package from their projects and monitor for any potential vulnerabilities using tools like Vulert.
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FAQ
The minimum_leopard_z3n package is an npm package that has been identified as part of a malicious campaign to manipulate the npm registry.
This vulnerability can lead to the pollution of the npm registry, potentially compromising the security and integrity of your project by introducing malicious code.
You should uninstall the minimum_leopard_z3n package immediately and check your project for any unintended consequences.
Currently, there is no patched version available for the minimum_leopard_z3n package, so it is recommended to remove it entirely.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time. You can also check your application against known vulnerabilities using the Vulert playground.
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Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
