Malicious Code Injection in left_pigeon_z3n Package - npm Vulnerability
Summary
MAL-2025-95209: Malicious code in left_pigeon_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The left_pigeon_z3n package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which are often used to inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises its integrity.
Vulnerability Detail
The vulnerability in the left_pigeon_z3n package originates from its involvement in a malicious campaign that floods the npm registry with derivative packages. The malicious payload modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the pollution of the npm registry. This could result in developers unknowingly using compromised packages, which may lead to security breaches or data leaks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall left_pigeon_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can manually delete the left_pigeon_z3n package from your project by running the following command: npm uninstall left_pigeon_z3n. Ensure to check your package.json and package-lock.json files for any remnants of the package and remove them accordingly.
Conclusion
The left_pigeon_z3n package has been identified as containing malicious code that poses a significant risk to developers using it. It is crucial to remove this package from your project and monitor for any similar vulnerabilities using tools like Vulert to ensure the security of your applications.
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FAQ
The left_pigeon_z3n package is an npm package involved in a token reward campaign that generates and publishes derivative packages.
The vulnerability can lead to the introduction of malicious code into your project, potentially compromising security and data integrity.
You should uninstall the left_pigeon_z3n package immediately and check for any other affected packages in your project.
Yes, you can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
