Malicious Code Injection in mutr-ssads-mutrio: A Threat to npm Ecosystem
Summary
MAL-2025-161161: Malicious code in mutr-ssads-mutrio (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
mutr-ssads-mutrio is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package, like others in the tea.xyz token reward scheme, is designed to manipulate developer reputation scores by flooding the registry with derivative packages. Its primary functionality is compromised by the presence of malicious scripts that automate the generation and publication of these packages, which can lead to significant pollution of the npm ecosystem.
Vulnerability Detail
The vulnerability in mutr-ssads-mutrio stems from its inclusion in a malicious campaign that employs autopublish scripts to create and publish numerous derivative packages with randomized names. These scripts modify the package.json file to remove private flags and alter version numbers, allowing the package to continuously republish variants. This behavior not only inflates developer reputation scores but also pollutes the npm registry, potentially leading to security risks for users who unknowingly install these compromised packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mutr-ssads-mutrioIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can avoid using the mutr-ssads-mutrio package and look for alternative packages that provide similar functionality without the associated risks. Always verify the integrity and reputation of packages before installation.
Conclusion
The mutr-ssads-mutrio package poses a significant risk due to its malicious code designed to manipulate npm registry reputation scores. Users are advised to uninstall the package and monitor their projects for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your software.
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FAQ
mutr-ssads-mutrio is an npm package that has been identified as part of a malicious campaign aimed at manipulating developer reputation scores by flooding the npm registry with derivative packages.
The vulnerability can lead to the installation of malicious packages that may compromise your project's security and integrity, as well as pollute the npm registry.
If you have installed mutr-ssads-mutrio, you should uninstall it immediately using the command npm uninstall mutr-ssads-mutrio.
To prevent similar vulnerabilities, regularly update your dependencies, use trusted packages, and monitor your project for vulnerabilities using tools like Vulert.
Vulert is a tool that monitors and alerts for open-source vulnerabilities in your software using just the package-lock.json file. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
