Malicious Code Injection in nosy_eel-tool: A Threat to npm Packages
Summary
MAL-2025-106383: Malicious code in nosy_eel-tool (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
nosy_eel-tool is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package is designed to automate the generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. The malicious nature of this package compromises the integrity of the npm ecosystem, making it crucial for developers to be aware of its risks.
Vulnerability Detail
The nosy_eel-tool package contains malicious code that modifies the package.json file to remove private flags and alters version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This behavior not only affects the reputation of developers but also poses a significant risk of dependency confusion and potential exploitation of applications relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall nosy_eel-toolIf 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 monitor your package dependencies using tools like Vulert, which allows you to check for vulnerabilities in your package-lock.json file. You can access the Vulert playground at https://vulert.com/scanner to see if your application is affected by this vulnerability without needing to sign up.
Conclusion
The nosy_eel-tool package poses a significant threat to the npm ecosystem due to its malicious behavior. Developers are advised to remove this package from their projects and utilize monitoring tools like Vulert to stay informed about potential vulnerabilities in their dependencies.
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FAQ
nosy_eel-tool is an npm package identified as part of a malicious campaign that automates the generation of derivative packages to inflate developer reputation scores.
The vulnerability can lead to dependency confusion, where your application may unintentionally rely on malicious packages, compromising its security and integrity.
You should uninstall the nosy_eel-tool package immediately using the command 'npm uninstall nosy_eel-tool' to mitigate any risks.
You can use tools like Vulert to monitor your package-lock.json file for vulnerabilities in real-time without requiring code access or installation.
No, the nosy_eel-tool package is considered malicious and should be removed rather than patched.
