Malicious Code Injection in mutdaufs-mudipoap-butysd Package

mutdaufs-mudipoap-butysd Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-161130: Malicious code in mutdaufs-mudipoap-butysd (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 mutdaufs-mudipoap-butysd package is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to automate the generation and publication of derivative packages, often with randomized names, to inflate developer reputation scores for token rewards. The package's functionality is compromised due to its malicious intent, which leads to the pollution of the npm registry.

Vulnerability Detail

The vulnerability originates from the package's design to include malicious scripts that modify the package.json file by removing private flags and changing version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants. This behavior not only compromises the integrity of the npm registry but also poses a risk to developers who may unknowingly use these tainted packages, potentially leading to security breaches in their applications.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall mutdaufs-mudipoap-butysd

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, avoid using the mutdaufs-mudipoap-butysd package and consider using alternative packages that provide similar functionality without the associated risks. Always verify the integrity of packages before including them in your project.

Conclusion

The mutdaufs-mudipoap-butysd package contains a significant vulnerability that can lead to malicious code injection and pollution of the npm registry. It is crucial for developers to remove this package and monitor their projects for any potential security issues. Utilizing tools like Vulert can enhance your ability to maintain secure dependencies.

See every vulnerability recorded for mutdaufs-mudipoap-butysd →

Share this vulnerability

FAQ

It is an npm package that is part of a malicious campaign aimed at inflating developer reputation scores through automated package publishing.

The vulnerability can lead to the introduction of malicious code into your project, compromising its security and potentially exposing sensitive data.

You should immediately uninstall the package using npm uninstall mutdaufs-mudipoap-butysd and monitor your project for any unusual behavior.

Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities using just your package-lock.json file. You can also check your application for vulnerabilities using the Vulert playground without any signup.

Regularly audit your dependencies using tools like npm audit, and consider using services like Vulert to monitor for vulnerabilities in real-time.

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 mutdaufs-mudipoap-butysd

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