Bug 2500634

Summary:	CVE-2026-43725 webkitgtk: webkitgtk: A malicious website may process restricted web content outside the sandbox [fedora-43]
Product:	[Fedora] Fedora	Reporter:	Robb Gatica <rgatica>
Component:	webkitgtk	Assignee:	Michael Catanzaro <mcatanza>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	43	CC:	daniel, gnome-sig, mcatanza, suraj.ghimire7, tpopela
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["898e04ef-8690-4b90-8c68-ea87a4377715"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-08-20 20:28:21 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2500532

Description Robb Gatica 2026-07-14 20:46:10 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

The issue was addressed with improved input validation.

Impact: a malicious website may process restricted web content outside the sandbox

Advisory: https://webkitgtk.org/security/WSA-2026-0004.html
WebKit Bug: https://bugs.webkit.org/show_bug.cgi?id=312832