Malicious Code Injection in sabua-muyaig-bufu Package

sabua-muyaig-bufu Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-165475: Malicious code in sabua-muyaig-bufu (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 Devnack Penetration testing for web, API and mobile Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

Background

The sabua-muyaig-bufu 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 scripts that compromise the integrity of the npm registry.

Vulnerability Detail

The vulnerability in the sabua-muyaig-bufu package stems from its inclusion in a malicious campaign that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially affecting developers relying on legitimate packages. The origin of this issue is linked to the automated scripts (auto.js, autopublish.js, etc.) that are designed to exploit the npm ecosystem.

How To Fix

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

npm uninstall sabua-muyaig-bufu

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 sabua-muyaig-bufu package and monitor your project's dependencies for any signs of malicious activity. Regularly audit your package-lock.json file to identify any unauthorized changes.

Conclusion

The sabua-muyaig-bufu package has been identified as containing malicious code that compromises the npm registry. It is crucial to remove this package from your projects and monitor for any related vulnerabilities. Utilizing tools like Vulert can help in maintaining the security of your open-source dependencies.

See every vulnerability recorded for sabua-muyaig-bufu →

Share this vulnerability

FAQ

The sabua-muyaig-bufu package is an npm package associated with a token reward campaign that has been identified as malicious.

The vulnerability can lead to the pollution of the npm registry and may compromise the integrity of your project's dependencies.

You should uninstall the sabua-muyaig-bufu package immediately and check for any dependencies that may have been affected.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time 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, use tools like Vulert for monitoring, and stay informed about known vulnerabilities in the npm ecosystem.

How To Fix

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

npm uninstall sabua-muyaig-bufu

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