Malicious Code Injection in light_guan_z3n: A Threat to npm Users
Summary
MAL-2025-95245: Malicious code in light_guan_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'light_guan_z3n' is part of the npm ecosystem and has been identified as a malicious entity linked to the tea.xyz token reward campaign. This package is designed to manipulate the npm registry by generating and publishing derivative packages with randomized names, thereby inflating developer reputation scores for token rewards. Its functionality is compromised, making it a significant threat to users and the integrity of the npm registry.
Vulnerability Detail
The vulnerability originates from the malicious intent behind the 'light_guan_z3n' package, which contains scripts that automatically 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 compromising the security of applications that rely on these packages. The ramifications include loss of trust in the npm ecosystem and potential exploitation of applications using these malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall light_guan_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 'light_guan_z3n' package and check your package-lock.json for any instances of this package. If found, remove it and ensure your project does not rely on it. You can also use the following command to check for vulnerabilities: 'npm audit'.
Conclusion
The 'light_guan_z3n' package poses a significant threat to the npm ecosystem due to its malicious behavior. Users are advised to remove this package and monitor their dependencies for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications.
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FAQ
The 'light_guan_z3n' package is a malicious npm package associated with the tea.xyz token reward campaign, designed to manipulate the npm registry.
This vulnerability can lead to the inclusion of malicious code in your application, potentially compromising its security and integrity.
You should immediately uninstall the 'light_guan_z3n' package and check your project dependencies for any related vulnerabilities.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without requiring any signup.
