Malicious Code Injection in decisive_unicorn_z3n Package
Summary
MAL-2025-93941: Malicious code in decisive_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 decisive_unicorn_z3n package is part of the npm ecosystem, often utilized in various JavaScript applications. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with numerous packages. This package, like others in the campaign, is designed to manipulate developer reputation scores through the automatic generation and publication of derivative packages.
Vulnerability Detail
The vulnerability in the decisive_unicorn_z3n package stems from its malicious code that modifies the package.json file. This code removes private flags, alters version numbers, and generates random package names, leading to the pollution of the npm registry. The malicious payload is part of a broader scheme to inflate developer reputation scores for token rewards, posing significant risks to developers relying on the integrity of npm packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall decisive_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 decisive_unicorn_z3n package and look for alternative packages that provide similar functionality without the associated risks. Always verify the integrity and reputation of packages before including them in your project.
Conclusion
The decisive_unicorn_z3n package poses a significant security risk due to its malicious code that alters package metadata and contributes to npm registry pollution. It is crucial for developers to remove this package and monitor their dependencies for vulnerabilities to maintain the integrity of their applications.
See every vulnerability recorded for decisive_unicorn_z3n →
FAQ
The decisive_unicorn_z3n package is an npm package associated with the tea.xyz token reward campaign, which aims to inflate developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and compromise the integrity of your application's dependencies, potentially introducing malicious code.
You should uninstall the decisive_unicorn_z3n package immediately and review your project's dependencies for any other potentially malicious packages.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just package-lock.json. You can check your application for vulnerabilities using the Vulert playground without any signup.
Yes, it is advisable to look for well-reviewed and actively maintained packages that provide similar functionality without the risks associated with malicious packages.
