Malicious Code Injection in kuinsu-uiu-vilkuimi Package
Summary
MAL-2025-157801: Malicious code in kuinsu-uiu-vilkuimi (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The kuinsu-uiu-vilkuimi package is part of the npm ecosystem, often utilized in JavaScript applications for various functionalities. However, this package has been identified as part of a malicious campaign that floods the npm registry with harmful scripts designed to manipulate package metadata and inflate developer reputation scores.
Vulnerability Detail
The vulnerability stems from malicious code embedded within the kuinsu-uiu-vilkuimi package. This code modifies the package.json file by removing private flags, altering version numbers, and generating random package names. The intent is to continuously republish these variants, polluting the npm registry and potentially compromising the integrity of applications that depend on these packages. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which exploits npm's publishing mechanisms.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall kuinsu-uiu-vilkuimiIf 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 prevent the installation of this malicious package by using npm's package-lock.json file to monitor dependencies. Ensure that your package-lock.json does not include kuinsu-uiu-vilkuimi. You can also use tools like Vulert to monitor your project for vulnerabilities in real-time.
Conclusion
The kuinsu-uiu-vilkuimi package poses a significant risk due to its malicious code designed to manipulate npm registry entries. It is crucial to remove this package and monitor your dependencies to maintain the security and integrity of your applications.
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FAQ
kuinsu-uiu-vilkuimi is an npm package that has been identified as part of a malicious campaign to manipulate package metadata and inflate developer reputation scores.
The malicious code can compromise the integrity of your application by altering package metadata and potentially introducing other vulnerabilities.
You should uninstall the kuinsu-uiu-vilkuimi package immediately and check your project for any other potentially malicious packages.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time.
Regularly update your dependencies and use tools that monitor your project for vulnerabilities to help prevent similar issues.
