Malicious Code Injection in lost_mite_z3n: A Threat to npm Ecosystem
Summary
MAL-2025-95317: Malicious code in lost_mite_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'lost_mite_z3n' is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to automate the generation and publishing of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious scripts that compromise the integrity of the npm registry.
Vulnerability Detail
The vulnerability in 'lost_mite_z3n' originates from its involvement in a campaign that floods the npm registry with malicious packages. The package includes scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially affecting other developers and users relying on npm packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall lost_mite_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can prevent the installation of this package by using npm's package-lock.json file to monitor dependencies. Ensure that you do not include 'lost_mite_z3n' in your dependencies. Additionally, consider using Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.
Conclusion
The 'lost_mite_z3n' package poses a significant threat to the npm ecosystem due to its malicious behavior. It is crucial for developers to remove this package from their projects and monitor for any vulnerabilities using tools like Vulert. Staying informed and proactive can help mitigate the risks associated with such vulnerabilities.
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FAQ
'lost_mite_z3n' is an npm package associated with a token reward campaign that has been identified as malicious.
The vulnerability can lead to the pollution of the npm registry, affecting the integrity of your project's dependencies and potentially introducing security risks.
You should uninstall the package immediately using 'npm uninstall lost_mite_z3n' and check for any other affected packages.
Currently, there is no patched version available for 'lost_mite_z3n'. It is recommended to remove the package entirely.
You can use Vulert, which monitors your package-lock.json file for vulnerabilities in real-time. Visit Vulert Scanner to check your application.
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Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
