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CVE-2026-19504

Fabric.js loadFromJSON Server-Side Request Forgery Vulnerability

MEDIUM
4
CVSS Score
Published: September 15, 2026 at 06:00 PM UTC
Updated: September 18, 2026 at 07:29 PM UTC
1 product affected across 1 vendorFabric.js

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Severity
MEDIUM4
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_research-advisory
Source: cverecord
https://www.zerodayinitiative.com/advisories/ZDI-26-588/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4MEDIUMzdi
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-918

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