CVE-2026-44311

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.

CVSS 3.1

6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-25)

CWEs

CWE-79, CWE-116

Published

2026-06-22

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

Affected

• fabricjs:fabric.js

Packages (OSV)

References

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

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