Malicious Code Injection in teagood-cuekin101: A Threat to npm Ecosystem
Summary
MAL-2025-166773: Malicious code in teagood-cuekin101 (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
teagood-cuekin101 is an npm package that is part of the tea.xyz token reward campaign. This package is designed to interact with the npm registry, but it has been identified as containing malicious code that can compromise the integrity of the registry and the developer's reputation. The package is known for generating and publishing derivative packages with randomized names, which can lead to a polluted npm ecosystem.
Vulnerability Detail
The vulnerability originates from the malicious code embedded within the teagood-cuekin101 package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random Indonesian-themed package names. The primary risk is that it can inflate developer reputation scores fraudulently and pollute the npm registry with numerous derivative packages, making it difficult for legitimate packages to be found and used. The continuous republishing of these variants can lead to a significant degradation of the npm ecosystem's reliability.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall teagood-cuekin101
If 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 teagood-cuekin101 package and any packages that depend on it. 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 teagood-cuekin101 package poses a significant threat to the npm ecosystem due to its malicious code that modifies package metadata and floods the registry with unwanted packages. It is crucial for developers to remove this package and monitor their projects for vulnerabilities to maintain the integrity of their applications.
See every vulnerability recorded for teagood-cuekin101 →
FAQ
teagood-cuekin101 is an npm package associated with the tea.xyz token reward campaign, which has been identified as containing malicious code.
The malicious code can modify your package.json file, inflate developer reputation scores fraudulently, and pollute the npm registry with unwanted packages.
You should uninstall the package immediately using 'npm uninstall teagood-cuekin101' and check for any other dependencies that may be affected.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software using just package-lock.json.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.