Malicious Code Injection in reluctant_hamster-gooddev Package
Summary
MAL-2025-107873: Malicious code in reluctant_hamster-gooddev (npm). Affected versions are not published. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The reluctant_hamster-gooddev package 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 behavior includes modifying essential files and continuously republishing variants, leading to pollution of the npm registry.
Vulnerability Detail
The vulnerability originates from the package being part of a larger malicious scheme associated with the tea.xyz token reward campaign. It contains scripts that alter the package.json file by removing private flags, changing version numbers, and generating random package names. This behavior not only compromises the integrity of the npm registry but also poses risks to developers who may unknowingly use these compromised packages, potentially leading to security breaches and loss of trust in the ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall reluctant_hamster-gooddevIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary workaround, you can avoid using the reluctant_hamster-gooddev package and look for alternative packages that provide similar functionality without the associated risks. Always verify the integrity and reputation of packages before including them in your project.
Conclusion
The reluctant_hamster-gooddev package is a malicious npm package that poses significant risks to developers and the integrity of the npm registry. It is essential to remove this package from your projects and monitor for vulnerabilities using tools like Vulert to maintain a secure development environment.
See every vulnerability recorded for reluctant_hamster-gooddev →
FAQ
It is an npm package identified as part of a malicious campaign that automates the generation of derivative packages for token rewards.
The vulnerability can lead to the pollution of the npm registry and compromise the integrity of your project by introducing malicious code.
You should uninstall the reluctant_hamster-gooddev package immediately and check for any other affected packages in your project.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just package-lock.json. You can check your application for vulnerabilities using the Vulert playground without any signup.
Yes, you should look for alternative packages that provide similar functionality while ensuring they are reputable and secure.
