Malicious Code Injection in clear_monkey-excellentdev Package
Summary
MAL-2025-100592: Malicious code in clear_monkey-excellentdev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The clear_monkey-excellentdev package is part of the npm ecosystem, primarily used for JavaScript development. It is designed to facilitate various development tasks but has been compromised. This package is linked to a broader campaign that exploits npm's package publishing system, leading to potential security risks for developers who rely on it.
Vulnerability Detail
The vulnerability stems from malicious code embedded in the clear_monkey-excellentdev package, which is part of a token reward scheme that floods npm with derivative packages. This malicious payload alters the package.json file by removing private flags, changing version numbers, and generating random package names. The continuous republishing of these variants can lead to pollution of the npm registry, affecting the integrity of the ecosystem and potentially compromising applications that depend on this package.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall clear_monkey-excellentdevIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, avoid using the clear_monkey-excellentdev package and consider using alternative packages that provide similar functionality without the associated risks.
Conclusion
The clear_monkey-excellentdev package poses a significant security risk due to its malicious code. Developers should take immediate action to remove this package and monitor their applications for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your software projects.
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FAQ
It is an npm package that has been compromised with malicious code, designed to exploit the npm registry.
The malicious code can alter your package.json file and lead to the installation of unwanted or harmful packages, compromising your application's security.
You should uninstall the clear_monkey-excellentdev package immediately and check your project for any unauthorized changes.
You can use tools like Vulert, which monitors your package-lock.json file for vulnerabilities in real-time without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without signing up.
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