Malicious Code Injection in reasonable_gull_z3n Package
Summary
MAL-2025-96219: Malicious code in reasonable_gull_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The reasonable_gull_z3n package is part of the npm ecosystem, typically used for various JavaScript functionalities. However, it has been identified as part of a malicious campaign that floods the npm registry with derivative packages. These packages often contain scripts that manipulate package metadata for nefarious purposes, impacting developers and the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the reasonable_gull_z3n package. This code is designed to modify the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior is part of a broader scheme to inflate developer reputation scores for token rewards associated with the tea.xyz protocol. The ramifications include potential pollution of the npm registry and compromise of developer environments.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall reasonable_gull_z3nIf 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 remove the reasonable_gull_z3n package from your project by executing: npm uninstall reasonable_gull_z3n. This will prevent any malicious code from executing until a secure version is available.
Conclusion
The reasonable_gull_z3n package poses a significant risk due to its malicious code that alters package metadata. It is crucial for developers to take immediate action by removing the package and monitoring for updates. Utilizing tools like Vulert can help maintain the security of your applications.
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FAQ
reasonable_gull_z3n is an npm package that has been identified as part of a malicious campaign to manipulate the npm registry.
The vulnerability can lead to unauthorized modifications of your package.json file and potentially compromise your development environment.
You should uninstall the package immediately and monitor for any updates or patches that may be released.
You can use Vulert, which monitors your package-lock.json file for vulnerabilities in real-time without requiring code access. Visit Vulert Scanner to check if your application is affected.
Regularly audit your dependencies, use tools like Vulert for monitoring, and stay updated with the latest security practices in the open-source community.
