Malicious Code Injection in messi-urt-efus Package
Summary
MAL-2025-160398: Malicious code in messi-urt-efus (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The messi-urt-efus package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the distribution of token rewards through automated scripts. However, it has been identified as containing malicious code that compromises its integrity and security.
Vulnerability Detail
The vulnerability in the messi-urt-efus package originates from its involvement in a scheme that floods the npm registry with derivative packages. These packages include scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. This behavior not only inflates developer reputation scores but also leads to pollution of the npm registry, potentially affecting other packages and users.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall messi-urt-efus
If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can avoid using the messi-urt-efus package and look for alternative packages that provide similar functionality without the associated risks. Additionally, regularly audit your npm packages using tools like npm audit to identify and address vulnerabilities.
Conclusion
The messi-urt-efus package contains malicious code that poses a significant risk to users and projects within the npm ecosystem. It is essential to remove this package and monitor for any vulnerabilities to maintain the security of your applications.
See every vulnerability recorded for messi-urt-efus →
FAQ
messi-urt-efus is an npm package associated with the tea.xyz token reward campaign, designed to automate the publication of derivative packages.
The vulnerability can lead to the pollution of the npm registry and may compromise the security and integrity of your project by introducing malicious code.
You should uninstall the messi-urt-efus package immediately and monitor your project for any unusual behavior.
Yes, tools like Vulert can help monitor and alert you in real-time for open-source vulnerabilities in your software without requiring code access.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.