Malicious Code Injection in operational_pony_z3n: A Threat to npm Ecosystem
Summary
MAL-2025-106745: Malicious code in operational_pony_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
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
The package operational_pony_z3n 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 can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises the integrity of the npm registry.
Vulnerability Detail
The vulnerability in operational_pony_z3n originates from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially affecting other developers and projects relying on npm packages. The malicious nature of this package poses significant risks, including reputation damage for developers and the introduction of untrusted code into applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall operational_pony_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 prevent the installation of the operational_pony_z3n package by using npm's package-lock.json to lock your dependencies. Additionally, consider using tools like Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.
Conclusion
The operational_pony_z3n package poses a significant threat to the npm ecosystem due to its malicious code that alters package metadata and repopulates the registry with untrusted packages. It is crucial for developers to remove this package and utilize tools like Vulert to monitor for vulnerabilities in their projects.
See every vulnerability recorded for operational_pony_z3n →
FAQ
operational_pony_z3n is an npm package that has been identified as containing malicious code aimed at manipulating the npm registry.
The vulnerability can lead to the introduction of untrusted code into your project, potentially compromising its security and integrity.
You should uninstall the operational_pony_z3n package immediately and monitor your project for any other vulnerabilities.
Yes, you can use tools like Vulert to monitor your dependencies for vulnerabilities and ensure you are using secure versions of packages.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
