Malicious Code Injection in helpful_manatee_z3n Package
Summary
MAL-2025-94808: Malicious code in helpful_manatee_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The helpful_manatee_z3n package is part of the npm ecosystem, often utilized in JavaScript projects for various functionalities. However, it has been identified as part of a malicious campaign that floods the npm registry with harmful packages. This package specifically is designed to manipulate developer reputation scores through automated publishing scripts, making it a significant risk for developers using it.
Vulnerability Detail
The vulnerability in the helpful_manatee_z3n package originates from its involvement in a token reward campaign that exploits npm's publishing system. It contains 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 compromising the integrity of projects that depend on this package. The malicious payload can lead to unauthorized access, data leaks, and a tarnished reputation for developers.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall helpful_manatee_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, avoid using the helpful_manatee_z3n package and consider replacing it with a reputable alternative that provides similar functionality without the associated risks.
Conclusion
The helpful_manatee_z3n package poses a significant risk due to its malicious code that manipulates npm's publishing system. Developers should take immediate action to remove this package and monitor their projects for any potential vulnerabilities. Utilizing tools like Vulert can aid in maintaining the security of your software.
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FAQ
The helpful_manatee_z3n package is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores through automated publishing.
This vulnerability can lead to unauthorized modifications of your project files, potential data leaks, and a polluted npm registry, which can affect the integrity of your dependencies.
If you have installed the helpful_manatee_z3n package, you should uninstall it immediately using npm uninstall helpful_manatee_z3n and check for any other affected packages.
Yes, tools like Vulert can monitor your package-lock.json file for vulnerabilities in real-time. You can use the Vulert playground at Vulert Scanner to check if your application is affected without needing to sign up.
To prevent similar vulnerabilities, regularly audit your dependencies, use trusted packages, and consider employing automated tools to monitor for vulnerabilities in your projects.
