Malicious Code Injection in mutaus-mansis-nutayi: A Threat to npm Packages

mutaus-mansis-nutayi Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-161096: Malicious code in mutaus-mansis-nutayi (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

mutaus-mansis-nutayi is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package, like others in the campaign, is designed to manipulate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package stems from its ability to alter critical files and continuously republish variants, thereby polluting the npm ecosystem.

Vulnerability Detail

The vulnerability in mutaus-mansis-nutayi originates from its association with the tea.xyz token reward campaign, which employs autopublish scripts to create and publish numerous derivative packages with randomized names. This malicious payload modifies the package.json file by removing private flags, changing version numbers, and generating random package names. The continuous republishing of these variants can lead to a polluted npm registry, affecting developers and users alike by introducing potentially harmful code into their projects.

How To Fix

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

npm uninstall mutaus-mansis-nutayi

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 affected package by removing it from your project dependencies and replacing it with a trusted alternative. Always verify the integrity and source of any packages before including them in your project.

Conclusion

The mutaus-mansis-nutayi package poses a significant threat due to its malicious code designed to manipulate npm registry and developer reputation. Immediate action is required to remove the package and safeguard your projects from potential harm. Regular monitoring and updates are essential to maintain security in your development environment.

See every vulnerability recorded for mutaus-mansis-nutayi →

Share this vulnerability

FAQ

mutaus-mansis-nutayi is an npm package that has been identified as part of a malicious campaign to manipulate developer reputation scores.

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

You should uninstall the package immediately using the command npm uninstall mutaus-mansis-nutayi and check for any other affected packages.

Yes, you can use Vulert to monitor your project for open-source vulnerabilities in real-time by analyzing your package-lock.json file.

You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.

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 mutaus-mansis-nutayi

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