Malicious Code Injection in numerous_hoverfly_z3n Package
Summary
MAL-2025-106409: Malicious code in numerous_hoverfly_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The numerous_hoverfly_z3n package is part of the npm ecosystem, often utilized for various development tasks. However, it has been identified as part of a malicious campaign that exploits npm's package management system. This package, like others in the campaign, is designed to inflate developer reputation scores through the automatic generation and publication of derivative packages with randomized names.
Vulnerability Detail
The vulnerability stems from the malicious code embedded in the numerous_hoverfly_z3n package, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is part of a broader scheme to pollute the npm registry and manipulate developer reputation scores. The potential ramifications include the introduction of insecure packages into projects, leading to further exploitation and security risks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall numerous_hoverfly_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the numerous_hoverfly_z3n package in your projects. Additionally, consider using npm audit to identify and address vulnerabilities in your dependencies.
Conclusion
The numerous_hoverfly_z3n package poses a significant security risk due to its malicious code that alters package metadata and publishes insecure variants. It is crucial for developers to remove this package and regularly audit their dependencies to maintain the security of their applications.
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FAQ
It is an npm package that has been identified as part of a malicious campaign to manipulate developer reputation scores.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.
Remove the numerous_hoverfly_z3n package from your project and check for any other affected packages.
It can lead to the introduction of insecure packages, potentially compromising the security and integrity of your project.
Regularly audit your dependencies using tools like npm audit and monitor for updates or vulnerabilities using services like Vulert.
