Malicious Code Injection in ucok-poke40: A Threat to npm Packages
Summary
MAL-2025-169661: Malicious code in ucok-poke40 (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
ucok-poke40 is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package is associated with the tea.xyz token reward initiative, which aims to inflate developer reputation scores by flooding the registry with derivative packages. The package's functionality is compromised due to its malicious intent, making it a significant risk for developers and users relying on npm packages.
Vulnerability Detail
The vulnerability in ucok-poke40 originates from its design to include autopublish scripts that modify the package.json file. These modifications remove private flags, alter version numbers, and generate random package names, leading to the continuous republishing of variants. This behavior not only pollutes the npm registry but also poses a risk of unintentional dependency on malicious code for developers who may unknowingly install these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ucok-poke40If 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 workaround, you can avoid using the ucok-poke40 package altogether and look for alternative packages that provide similar functionality without the associated risks. Additionally, consider using tools like Vulert to monitor your package-lock.json file for vulnerabilities.
Conclusion
The ucok-poke40 package poses a significant risk due to its malicious code designed to manipulate npm registry entries. It is essential for developers to be vigilant, remove any affected packages, and utilize tools like Vulert to safeguard their projects against such vulnerabilities.
See every vulnerability recorded for ucok-poke40 →
FAQ
ucok-poke40 is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores through the creation of derivative packages.
The vulnerability can lead to the installation of malicious code, which may compromise your application and its dependencies, potentially leading to security breaches.
You should uninstall the package immediately using 'npm uninstall ucok-poke40' and check your project for any other potentially malicious packages.
Regularly update your npm packages, use trusted sources for package installations, and employ tools like Vulert to monitor your dependencies for vulnerabilities.
Vulert is a tool that monitors your package-lock.json file for open-source vulnerabilities in real-time. You can use the Vulert playground to check if your application is affected by known vulnerabilities without needing to sign up.
