Malicious Code Injection in mutaus-mudipoap-butysd Package
Summary
MAL-2025-161108: Malicious code in mutaus-mudipoap-butysd (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The mutaus-mudipoap-butysd 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, often with randomized names, to inflate developer reputation scores for token rewards. Its functionality is compromised by malicious scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability in the mutaus-mudipoap-butysd package stems from its inclusion in a malicious campaign that deploys autopublish scripts. These scripts modify the package.json file to remove private flags, alter version numbers, and generate random package names, leading to the continuous republishing of variants that pollute the npm registry. This not only affects the integrity of the npm ecosystem but also poses risks to developers who may unknowingly use these compromised packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mutaus-mudipoap-butysdIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the mutaus-mudipoap-butysd package and any packages that depend on it. Additionally, consider using the following command to audit your npm packages for vulnerabilities: npm audit.
Conclusion
The mutaus-mudipoap-butysd package contains a significant vulnerability that can compromise the integrity of your project and the npm ecosystem. It is essential to remove this package and stay vigilant by using tools like Vulert to monitor for vulnerabilities in your dependencies.
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FAQ
It is an npm package associated with the tea.xyz token reward campaign, designed to generate and publish derivative packages.
The vulnerability can lead to the introduction of malicious code and the pollution of the npm registry, potentially compromising your project's security.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Check your application using the Vulert playground at Vulert Scanner.
Remove the mutaus-mudipoap-butysd package from your project immediately and audit your dependencies for any other vulnerabilities.
Regularly audit your dependencies using tools like npm audit and monitor for updates on known vulnerabilities.
