CVE-2026-19504 — MEDIUM (4.0)

Vulnerability Description

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 specific flaw exists within the implementation of the loadFromJSON method. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker may be able to leverage this vulnerability to gain improper access to network resources. Was ZDI-CAN-29318.

CVSS Score

4.0

MEDIUM

CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-918

References

https://www.zerodayinitiative.com/advisories/ZDI-26-588/

FAQ

What is CVE-2026-19504?

CVE-2026-19504 is a vulnerability with a CVSS score of 4.0 (MEDIUM). 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 ...

How severe is CVE-2026-19504?

CVE-2026-19504 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-19504?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.