Critical Malicious Code Vulnerability in falcor-server Package
Summary
MAL-2026-2086: Malicious code in falcor-server (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
falcor-server is a JavaScript library used for building efficient data fetching systems, primarily in web applications. It allows developers to create a unified data model that can be queried via a single endpoint. However, this package has been compromised, leading to severe security risks for any application utilizing it.
Vulnerability Detail
The vulnerability originates from malicious code embedded within the falcor-server package. This code can fully compromise any computer that has the package installed, allowing unauthorized access to sensitive information such as secrets and keys. The implications of this vulnerability are severe, as it may lead to data breaches and loss of control over the affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall falcor-serverIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
There are no effective workarounds for this vulnerability. The only recommended action is to uninstall the falcor-server package and secure the system.
Conclusion
The falcor-server package has been compromised with malicious code, posing significant security risks. Immediate action is required to remove the package and secure any affected systems. Regular monitoring using tools like Vulert can help prevent future vulnerabilities.
See every vulnerability recorded for falcor-server →
FAQ
falcor-server is a library that helps in building efficient data fetching systems for web applications.
You can use Vulert to monitor and alert for vulnerabilities in your application. Check your package-lock.json file with Vulert's playground at Vulert Scanner.
Immediately uninstall the falcor-server package and rotate any sensitive information stored on the affected system.
Currently, there is no patched version available. The best course of action is to remove the package entirely.
Failure to address this vulnerability can lead to unauthorized access to sensitive data, potential data breaches, and loss of control over your systems.
