Malicious Code Injection in 'appropriate_unicorn_z3n' Package
Summary
MAL-2025-99532: Malicious code in appropriate_unicorn_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The 'appropriate_unicorn_z3n' package is part of the npm ecosystem and has been identified as a component of the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been compromised to include malicious scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability originates from the malicious code embedded within the 'appropriate_unicorn_z3n' package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the continuous republishing of variants. This behavior not only pollutes the npm registry but also poses risks to developers who may unknowingly use these compromised packages, potentially affecting their applications and reputations.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall appropriate_unicorn_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary workaround, you can avoid using the 'appropriate_unicorn_z3n' package and look for alternative packages that provide similar functionality without the associated risks. Additionally, consider using npm audit to identify and address vulnerabilities in your dependencies.
Conclusion
The 'appropriate_unicorn_z3n' package contains malicious code that poses significant risks to developers and their applications. It is crucial to remove this package and monitor for updates to ensure the security of your projects. Utilizing tools like Vulert can help maintain awareness of vulnerabilities in your dependencies.
See every vulnerability recorded for appropriate_unicorn_z3n →
FAQ
It is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores through automated publishing.
The malicious code modifies your package.json file, potentially leading to the use of compromised packages that can harm your application and reputation.
You should immediately remove the 'appropriate_unicorn_z3n' package from your project and monitor for any updates or patches.
You can use tools like Vulert, which monitors and alerts for open-source vulnerabilities in your software by analyzing your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
