Malicious Code Injection in mulyono-pisang49-ruro Package
Summary
MAL-2025-106025: Malicious code in mulyono-pisang49-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The mulyono-pisang49-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 aims to exploit npm by flooding the registry with derivative packages. These packages are designed to manipulate developer reputation scores through automated publishing scripts, which can lead to significant pollution of the npm registry.
Vulnerability Detail
The vulnerability in the mulyono-pisang49-ruro package originates from its involvement in the tea.xyz token reward campaign. It contains scripts that automatically modify the package.json file to remove private flags, alter version numbers, and generate random package names. This malicious behavior allows the package to continuously republish variants, thereby polluting the npm registry and potentially compromising the integrity of other packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mulyono-pisang49-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 mulyono-pisang49-ruro package and monitor your project for any dependencies that may indirectly rely on it. Additionally, consider using tools like Vulert to monitor your package-lock.json for vulnerabilities.
Conclusion
The mulyono-pisang49-ruro package poses a significant risk due to its malicious code that manipulates npm registry integrity. It is essential to remove this package and monitor your project for any vulnerabilities to maintain a secure development environment.
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FAQ
It is an npm package that has been identified as part of a malicious campaign to manipulate developer reputation scores.
The vulnerability can lead to pollution of the npm registry and may compromise the integrity of other packages in your project.
You should uninstall the mulyono-pisang49-ruro package immediately and check for any other affected packages.
Yes, you can use Vulert to monitor your package-lock.json for open-source vulnerabilities in real-time.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities without any signup.
