Malicious Code Vulnerability in ksp-client-registry Package
Summary
MAL-2026-17771: Malicious code in ksp-client-registry (npm). Affects ksp-client-registry versions 100.100.100 – 100.100.101. No fix is published. How to fix ↓
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Background
The ksp-client-registry package is an npm library designed for client-side registry management. It allows developers to interact with package registries in a streamlined manner. However, this package has been found to contain malicious code that compromises user data and system integrity, making it a significant security risk.
Vulnerability Detail
The vulnerability originates from the ksp-client-registry@100.100.100 version, which includes a prebuilt native addon that opens a raw TCP socket to a hardcoded IP address (64.181.165.115). Upon loading, it sends sensitive environment variables such as HOSTNAME, npm_package_name, and npm_config_registry in an HTTP request. This behavior indicates a dependency-confusion attack designed to exfiltrate data from the victim's environment. The package's high version number and generic name suggest it may be an attempt to masquerade as a legitimate package, further complicating detection.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ksp-client-registryIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can remove the ksp-client-registry package from your project until a secure version is released. Use the following command to uninstall it: npm uninstall ksp-client-registry.
Conclusion
The ksp-client-registry package has a critical vulnerability that allows malicious code to exfiltrate sensitive data. It is essential to update the package to a secure version and monitor your application for vulnerabilities to protect against potential attacks.
See every vulnerability recorded for ksp-client-registry →
FAQ
The ksp-client-registry package is an npm library used for managing client-side interactions with package registries.
The vulnerability can lead to unauthorized data exfiltration, compromising sensitive environment variables and potentially exposing your application to further attacks.
Check the package's repository for any updates or patches. If a patched version is available, update to that version immediately.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just your package-lock.json file. Visit https://vulert.com for more information.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
