Malicious Code Injection in yammering_roadrunner_z3n Package
Summary
MAL-2025-97467: Malicious code in yammering_roadrunner_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The yammering_roadrunner_z3n package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate the development of applications by providing reusable code. However, it has been identified as part of a malicious campaign that aims to exploit the npm registry by flooding it with derivative packages that can inflate developer reputation scores for token rewards. The presence of malicious code in this package poses significant risks to developers and their applications.
Vulnerability Detail
The vulnerability originates from the yammering_roadrunner_z3n package, which is associated with the tea.xyz token reward campaign. The malicious code is designed to modify the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior leads to the continuous republishing of variants, which pollutes the npm registry and can compromise the integrity of the software supply chain. Developers using this package may unknowingly introduce security risks into their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall yammering_roadrunner_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 avoid using the yammering_roadrunner_z3n package and look for alternative packages that provide similar functionality without the associated risks. Additionally, you can monitor your project for any unauthorized changes to the package.json file.
Conclusion
The yammering_roadrunner_z3n package has been identified as containing malicious code that poses significant risks to developers and their applications. It is crucial to uninstall this package and monitor your project for any unauthorized changes. Utilizing tools like Vulert can help in maintaining the security of your software.
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FAQ
The yammering_roadrunner_z3n package is an npm package that has been identified as part of a malicious campaign aimed at exploiting the npm registry.
The malicious code modifies your package.json file, potentially leading to unauthorized changes and the introduction of vulnerabilities into your application.
You should uninstall the yammering_roadrunner_z3n package immediately and check for any other affected dependencies in your project.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software using just package-lock.json.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
