Bug 2453003 (CVE-2026-20691)

Summary: CVE-2026-20691 webkitgtk: A maliciously crafted webpage may be able to fingerprint the user
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in WebKitGTK. A maliciously crafted web page can cause an authorization issue due to improper state management and may be able to fingerprint the user.
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: 2453071, 2453072, 2453073    
Bug Blocks:    

Description OSIDB Bzimport 2026-03-30 12:34:21 UTC
An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A maliciously crafted webpage may be able to fingerprint the user.

Comment 2 errata-xmlrpc 2026-04-22 11:44:01 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:9692 https://access.redhat.com/errata/RHSA-2026:9692

Comment 3 errata-xmlrpc 2026-04-27 01:51:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:10702 https://access.redhat.com/errata/RHSA-2026:10702

Comment 4 errata-xmlrpc 2026-04-28 07:31:27 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:11329 https://access.redhat.com/errata/RHSA-2026:11329

Comment 5 errata-xmlrpc 2026-04-29 16:13:33 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-2026:11814 https://access.redhat.com/errata/RHSA-2026:11814

Comment 6 errata-xmlrpc 2026-05-05 18:10:35 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 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:13845 https://access.redhat.com/errata/RHSA-2026:13845

Comment 7 errata-xmlrpc 2026-05-07 05:53:52 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:14659 https://access.redhat.com/errata/RHSA-2026:14659

Comment 8 errata-xmlrpc 2026-05-11 18:42:30 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-2026:16056 https://access.redhat.com/errata/RHSA-2026:16056

Comment 9 errata-xmlrpc 2026-05-13 01:56:18 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:16695 https://access.redhat.com/errata/RHSA-2026:16695

Comment 10 errata-xmlrpc 2026-05-19 18:02:04 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19206 https://access.redhat.com/errata/RHSA-2026:19206

Comment 11 errata-xmlrpc 2026-05-20 05:27:10 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:19535 https://access.redhat.com/errata/RHSA-2026:19535

Comment 12 errata-xmlrpc 2026-06-01 01:55:00 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:22136 https://access.redhat.com/errata/RHSA-2026:22136