CVE-2026-44311
Fabric.js: Improper escaping in fabric.Gradient colorStops leads to XSS in SVG serialization
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.
INFO
Published Date :
June 22, 2026, 10:16 p.m.
Last Modified :
June 26, 2026, 8:09 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Fabric.js to version 7.4.0 or later.
- Sanitize user-supplied input before SVG serialization.
- Ensure SVG output is properly escaped before rendering.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-44311.
| URL | Resource |
|---|---|
| https://github.com/fabricjs/fabric.js/releases/tag/v740 | Product Release Notes |
| https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx | Exploit Mitigation Vendor Advisory |
| https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx | Exploit Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-44311 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-44311
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-44311 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-44311 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:fabricjs:fabric.js:*:*:*:*:*:node.js:*:* versions up to (excluding) 7.4.0 Added Reference Type GitHub, Inc.: https://github.com/fabricjs/fabric.js/releases/tag/v740 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx Types: Exploit, Mitigation, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 23, 2026
Action Type Old Value New Value Added Reference https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx Added SSVC {'id': 'CVE-2026-44311', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-23T16:13:31.986414Z'} -
New CVE Received by [email protected]
Jun. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'fabricjs', 'product': 'fabric.js', 'versions': [{'status': 'affected', 'version': '< 7.4.0'}]}] Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Added CWE CWE-79 Added CWE CWE-116 Added Reference https://github.com/fabricjs/fabric.js/releases/tag/v740 Added Reference https://github.com/fabricjs/fabric.js/security/advisories/GHSA-w22m-hvvm-xmwx