Malicious Code Injection in quintessential_grasshopper_z3n Package
Summary
MAL-2025-89889: Malicious code in quintessential_grasshopper_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The quintessential_grasshopper_z3n package is part of the npm ecosystem, often utilized for various JavaScript functionalities. However, this package has been identified as part of a malicious campaign associated with the tea.xyz token reward system. It is designed to inflate developer reputation scores through the automatic generation and publication of derivative packages, which can lead to significant security risks.
Vulnerability Detail
The vulnerability originates from a malicious payload embedded within the quintessential_grasshopper_z3n package. This payload modifies the package.json file to remove private flags, alters version numbers, and generates random package names, thereby polluting the npm registry. The implications of this vulnerability include the potential for unauthorized access to sensitive data, the spread of malicious code, and the degradation of the npm ecosystem's integrity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall quintessential_grasshopper_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the quintessential_grasshopper_z3n package and look for alternative packages that provide similar functionality without the associated risks.
Conclusion
The quintessential_grasshopper_z3n package poses a significant security risk due to its malicious code designed to manipulate the npm registry. Immediate action is required to remove this package and safeguard your application from potential threats.
See every vulnerability recorded for quintessential_grasshopper_z3n →
FAQ
It is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores.
The vulnerability can lead to unauthorized access to sensitive data and the proliferation of malicious code within your application.
You should uninstall the quintessential_grasshopper_z3n package immediately and monitor your application for any unusual activity.
Yes, you can use Vulert, which monitors and alerts you in real-time for open-source vulnerabilities using just your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without requiring any signup.
