ZDI-26-588: Fabric.js loadFromJSON Server-Side Request Forgery Vulnerability

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Fabric.js. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The ZDI has assigned a CVSS rating of 4.0. The following CVEs are assigned: CVE-2026-19504.