Malicious Code Injection in mahesa-ubi79-ruro Package
Summary
MAL-2025-105507: Malicious code in mahesa-ubi79-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The mahesa-ubi79-ruro package is part of the npm ecosystem, which is widely used for JavaScript package management. This package has been identified as part of a malicious campaign that floods the npm registry with derivative packages aimed at inflating developer reputation scores for token rewards. The package's functionality is compromised by the inclusion of scripts that manipulate its metadata and continuously republish variants, leading to pollution of the npm registry.
Vulnerability Detail
The vulnerability originates from the mahesa-ubi79-ruro package being part of a malicious campaign that includes scripts designed to modify the package.json file. These scripts remove private flags, alter version numbers, and generate random package names, which can lead to significant issues such as reputation damage for developers, potential security risks for applications using these packages, and an overall polluted npm registry. The malicious payload is designed to operate autonomously, continuously republishing variants that can confuse developers and users alike.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mahesa-ubi79-ruroIf 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 mahesa-ubi79-ruro package and replace it with a trusted alternative. Regularly monitor your dependencies and consider using tools like Vulert to check for vulnerabilities in your package-lock.json file.
Conclusion
The mahesa-ubi79-ruro package has been identified as a malicious entity within the npm ecosystem, posing significant risks to developers and their applications. It is crucial to remove this package and monitor your dependencies for vulnerabilities to maintain the integrity and security of your projects.
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FAQ
The mahesa-ubi79-ruro package is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores.
The vulnerability can lead to the inclusion of malicious code in your application, potentially compromising security and damaging your reputation as a developer.
You should uninstall the mahesa-ubi79-ruro package immediately and check your application for any potential impacts.
You can use tools like Vulert, which monitors your package-lock.json file for vulnerabilities in real-time without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
