Bug 2500521 (CVE-2026-43676)

Summary:	CVE-2026-43676 webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in WebKitGTK. Processing maliciously crafted web content can trigger an out-of-bounds read due to improper bounds checking, resulting in an unexpected process crash.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-07-14 19:07:46 UTC

An out-of-bounds access issue was addressed with improved bounds checking.

Impact: maliciously crafted web content may cause unexpected Safari crash

Advisory: https://webkitgtk.org/security/WSA-2026-0004.html
WebKit Bug: https://bugs.webkit.org/show_bug.cgi?id=317231

Comment 4 errata-xmlrpc 2026-07-20 18:16:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:42088 https://access.redhat.com/errata/RHSA-2026:42088

Comment 5 errata-xmlrpc 2026-07-20 18:49:44 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:42062 https://access.redhat.com/errata/RHSA-2026:42062