Malicious Code Injection in erwin-nasisayur86-ruro Package
Summary
MAL-2025-102219: Malicious code in erwin-nasisayur86-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The erwin-nasisayur86-ruro 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 code that compromises the integrity of the npm registry.
Vulnerability Detail
The vulnerability in the erwin-nasisayur86-ruro package stems from its malicious payload, which modifies the package.json file to remove private flags and alters version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This behavior can lead to a significant increase in the number of untrustworthy packages, potentially affecting developers who rely on the npm ecosystem for secure package management.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall erwin-nasisayur86-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 erwin-nasisayur86-ruro package and instead look for alternative packages that provide similar functionality without the associated risks. Additionally, regularly audit your package dependencies using tools like npm audit.
Conclusion
The erwin-nasisayur86-ruro package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry with untrustworthy packages. It is crucial for developers to remove this package and monitor their dependencies for vulnerabilities to maintain the integrity of their projects.
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FAQ
It is an npm package involved in the tea.xyz token reward campaign, designed to generate and publish derivative packages.
The malicious code can modify your package.json, remove private flags, and introduce untrustworthy packages into your project.
You should remove the package immediately and check for any other dependencies that may have been affected.
You can use tools like Vulert, which monitors your package-lock.json for vulnerabilities in real-time without requiring code access.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without signing up.
