CVE-2026-44311 | Fabric.js is a Javascript HTML5 canvas library. Prior to 7.4… | CVSS 5.4 MEDIUM

Description

Fabric.js is a Javascript HTML5 canvas library. Prior to 7.4.0, a potential Cross-Site Scripting (XSS) vulnerability exists in Fabric.js due to improper escaping of user-controlled input during SVG serialization via the toSVG() method. Specifically, the color field within the colorStops array of a fabric.Gradient object is not properly escaped when converted into SVG <stop> elements. If an application renders the generated SVG string into the DOM, this may allow an attacker to inject arbitrary HTML/SVG and execute JavaScript in the victim's browser. This vulnerability is fixed in 7.4.0.

Metadata

CVE ID: CVE-2026-44311
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-05 19:00 UTC
Published: 2026-06-22 20:50 UTC
Last updated: 2026-06-22 20:50 UTC
Primary CWE: CWE-79
CWE-79: Improper Neutralization of Input During Web Page Gen…
Vendor / Product: fabricjs / fabric.js
Sources: cve.org · NVD

Severity & Metrics

5.4 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected products (1)

Vendor	Product	Platform	Versions
fabricjs	fabric.js	—	< 7.4.0

Weakness (CWE)

CWE	Source	Description
CWE-116	cna	CWE-116: Improper Encoding or Escaping of Output
CWE-79	cna	CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.4	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References (2)

https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx
https://github.com/fabricjs/fabric.js/releases/tag/v740 https://github.com/fabricjs/fabric.js/releases/tag/v740