Malicious Code Injection in messi-urt-efus Package

messi-urt-efus Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-160398: Malicious code in messi-urt-efus (npm). Affected versions are not published. No fix is published. How to fix ↓

Free scan

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.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

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.

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 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 →

Share this vulnerability

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.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

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.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback