Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fabricjs | Fabric.Js | < 7.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/fabricjs/fabric.js/releases/tag/v740ProductRelease Notes
- https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwxExploitMitigationVendor Advisory
- https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwxExploitMitigationVendor Advisory
FAQ
What is CVE-2026-44311?
CVE-2026-44311 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 se...
How severe is CVE-2026-44311?
CVE-2026-44311 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44311?
Check the references section above for vendor advisories and patch information. Affected products include: Fabricjs Fabric.Js.