Malicious Code Injection in mutdaufs-marimasa-nutatsrids Package
Summary
MAL-2025-161128: Malicious code in mutdaufs-marimasa-nutatsrids (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 mutdaufs-marimasa-nutatsrids package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises its integrity and the security of the npm registry.
Vulnerability Detail
The vulnerability originates from the malicious code embedded within the mutdaufs-marimasa-nutatsrids package. This code modifies the package.json file by removing private flags, altering version numbers, and generating random package names, which leads to the continuous republishing of these variants. The ramifications include pollution of the npm registry, potential exploitation of developers' reputation systems, and the risk of introducing further vulnerabilities into dependent projects.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mutdaufs-marimasa-nutatsridsIf 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 workaround, you can temporarily avoid using the mutdaufs-marimasa-nutatsrids package and look for alternative packages that provide similar functionality without the associated risks. Additionally, consider using tools like Vulert to monitor your package-lock.json for vulnerabilities.
Conclusion
The mutdaufs-marimasa-nutatsrids package contains malicious code that poses significant risks to developers and the npm ecosystem. It is crucial to remove this package and monitor for updates to ensure the security of your projects. Utilizing tools like Vulert can help maintain awareness of potential vulnerabilities.
See every vulnerability recorded for mutdaufs-marimasa-nutatsrids →
FAQ
It is an npm package associated with the tea.xyz token reward campaign, designed to automate the generation of derivative packages.
The malicious code can modify your package.json, remove private flags, and republish variants, potentially leading to security issues and reputation inflation.
You can use Vulert's playground at Vulert Scanner to check if your application is affected without requiring any signup.
You should remove the mutdaufs-marimasa-nutatsrids package from your project and monitor for any updates or patches.
Regularly monitor your dependencies using tools like Vulert, which can alert you to open-source vulnerabilities in real-time.
