Bug 2483963 (CVE-2026-28942)

Summary:	CVE-2026-28942 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory management and result in an unexpected process crash.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2484078, 2484079
Bug Blocks:

Description OSIDB Bzimport 2026-06-02 13:35:01 UTC

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Comment 2 errata-xmlrpc 2026-06-15 06:34:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:25918 https://access.redhat.com/errata/RHSA-2026:25918

Comment 4 errata-xmlrpc 2026-06-15 10:01:11 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:25927 https://access.redhat.com/errata/RHSA-2026:25927

Comment 5 errata-xmlrpc 2026-06-22 03:44:16 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:27728 https://access.redhat.com/errata/RHSA-2026:27728

Comment 6 errata-xmlrpc 2026-06-22 06:11:42 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:27785 https://access.redhat.com/errata/RHSA-2026:27785

Comment 7 errata-xmlrpc 2026-06-22 09:21:45 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:27804 https://access.redhat.com/errata/RHSA-2026:27804

Comment 8 errata-xmlrpc 2026-06-23 04:34:42 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:28114 https://access.redhat.com/errata/RHSA-2026:28114

Comment 9 errata-xmlrpc 2026-06-23 09:59:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:28148 https://access.redhat.com/errata/RHSA-2026:28148

Comment 10 errata-xmlrpc 2026-06-23 10:02:34 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:28146 https://access.redhat.com/errata/RHSA-2026:28146

Comment 11 errata-xmlrpc 2026-06-25 17:56:50 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:28147 https://access.redhat.com/errata/RHSA-2026:28147