Malicious Code Injection in endless_llama-appteadev: A Threat to npm Packages

endless_llama-appteadev Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-102092: Malicious code in endless_llama-appteadev (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The endless_llama-appteadev package is part of the npm ecosystem, which is widely used for JavaScript development. This package, like many others, is intended to facilitate the development process by providing reusable code components. However, it has been identified as part of a malicious campaign that exploits npm's package management system, leading to significant security concerns.

Vulnerability Detail

The vulnerability in endless_llama-appteadev stems from its association with a malicious campaign that floods the npm registry with derivative packages. This package contains scripts designed to modify package.json files by removing private flags, altering version numbers, and generating random package names. The continuous republishing of these variants can lead to pollution of the npm registry, potentially compromising the integrity of other packages and affecting developers' reputations.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall endless_llama-appteadev

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 prevent the installation of this malicious package by using npm's package-lock.json to monitor dependencies. Ensure that your project does not include endless_llama-appteadev in its dependencies. You can also utilize tools like Vulert to monitor your project for vulnerabilities without needing to access the code directly.

Conclusion

The endless_llama-appteadev package poses a significant threat due to its malicious code designed to manipulate the npm registry. It is essential for developers to remove this package from their projects and utilize tools like Vulert to monitor for vulnerabilities continuously. Staying informed and proactive is key to maintaining the security of your applications.

See every vulnerability recorded for endless_llama-appteadev →

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FAQ

endless_llama-appteadev is an npm package that has been identified as part of a malicious campaign to manipulate the npm registry.

The vulnerability can lead to the pollution of the npm registry, potentially compromising the integrity of other packages and affecting your project's security.

You should uninstall the endless_llama-appteadev package immediately and ensure your project dependencies are clean.

You can use Vulert, which monitors your package-lock.json to alert you in real-time for open-source vulnerabilities.

Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without requiring any signup.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall endless_llama-appteadev

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 →

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