Malicious Code Injection in jolly_buzzard_z3n Package
Summary
MAL-2025-95139: Malicious code in jolly_buzzard_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The jolly_buzzard_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. This package is designed to manipulate developer reputation scores through automated publishing scripts, making it a target for developers looking to maintain secure and reliable codebases.
Vulnerability Detail
The vulnerability in jolly_buzzard_z3n originates from its association with the tea.xyz token reward campaign, which employs autopublish scripts to generate and publish numerous derivative packages with randomized names. This malicious activity modifies the package.json file by removing private flags, altering version numbers, and continuously republishing variants, thereby polluting the npm registry. The ramifications include potential security risks for developers who unknowingly integrate this package into their projects, as it can lead to reputation damage and compromised code integrity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall jolly_buzzard_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 jolly_buzzard_z3n package from your project by executing the following command: npm uninstall jolly_buzzard_z3n. This will prevent any malicious code from executing in your environment until a secure version is released.
Conclusion
The jolly_buzzard_z3n package poses a significant security risk due to its malicious code injection capabilities. It is crucial for developers to remain vigilant and take necessary actions, such as updating or removing the package, to safeguard their projects. Utilizing tools like Vulert can aid in monitoring and managing vulnerabilities effectively.
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FAQ
jolly_buzzard_z3n is an npm package that has been identified as part of a malicious campaign to manipulate developer reputation scores.
The vulnerability can lead to the introduction of malicious code into your project, compromising its integrity and security.
You should uninstall the jolly_buzzard_z3n package immediately and monitor your project for any unusual behavior.
Yes, you can use Vulert to monitor your project for open-source vulnerabilities in real-time using just your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
