Malicious Code Injection in few_falcon_z3n Package - npm Vulnerability
Summary
MAL-2025-94492: Malicious code in few_falcon_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The few_falcon_z3n package is part of the npm ecosystem, primarily used for JavaScript development. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. This package, like others in the campaign, is designed to manipulate developer reputation scores through automated publishing scripts.
Vulnerability Detail
The vulnerability in the few_falcon_z3n package stems from its inclusion in a malicious campaign that modifies package.json files to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of these variants, which pollutes the npm registry and can compromise the integrity of dependent projects. The malicious payload is specifically designed to inflate developer reputation scores for token rewards, posing a significant risk to the npm ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall few_falcon_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 few_falcon_z3n package and replace it with a trusted alternative. Additionally, consider using npm audit to identify and address vulnerabilities in your project dependencies.
Conclusion
The few_falcon_z3n package poses a significant risk due to its malicious code designed to manipulate npm registry integrity. It is crucial to remove this package from your projects and monitor for vulnerabilities using tools like Vulert to ensure the security of your applications.
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FAQ
The few_falcon_z3n package is an npm package that has been identified as part of a malicious campaign aimed at manipulating developer reputation scores.
This vulnerability can lead to the pollution of the npm registry and may compromise the integrity of your project by introducing malicious code.
You should remove the few_falcon_z3n package from your project 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.
