Malicious Code Injection in lesser_chickadee_z3n Package
Summary
MAL-2025-95233: Malicious code in lesser_chickadee_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The lesser_chickadee_z3n 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's publishing capabilities. It is designed to automatically generate and publish derivative packages with randomized names, which can lead to reputation inflation for developers involved in the tea.xyz token reward campaign.
Vulnerability Detail
The vulnerability in the lesser_chickadee_z3n package stems from its malicious payload that modifies the package.json file. It removes private flags, alters version numbers, and generates random package names, which can lead to the pollution of the npm registry. This behavior not only compromises the integrity of the npm ecosystem but also poses a risk to developers who may inadvertently use these compromised packages in their projects.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall lesser_chickadee_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 lesser_chickadee_z3n package from your project by executing: npm uninstall lesser_chickadee_z3n. Additionally, consider using alternative packages that provide similar functionality without the associated risks.
Conclusion
The lesser_chickadee_z3n package has been identified as a malicious entity within the npm ecosystem, posing significant risks to developers and their projects. It is essential to take immediate action to mitigate these risks by updating or removing the package and utilizing monitoring tools like Vulert for ongoing security.
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FAQ
The lesser_chickadee_z3n package is an npm package that has been identified as part of a malicious campaign aimed at manipulating the npm registry.
This vulnerability can lead to the introduction of malicious code into your project, potentially compromising its security and integrity.
If you have installed the lesser_chickadee_z3n package, it is crucial to uninstall it immediately and check for any other affected packages.
You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
