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Fedora 43 WebKitGTK Important Performance and Content Fixes 2026-1557aaef26

fedora
Calendar Grey June 19, 2026
Scroller Fedora Esm H88
Security updates for Fedora 43 addressing content handling and web performance in webkitgtk. Critical fixes included.
Add support for half-width fonts

Summary

WebKitGTK is the port of the WebKit web rendering engine to the

GTK platform.

Update Information:

Add support for half-width fonts. Improve content filter compilation by avoiding file copies. Improve handling of out of disk space conditions when the NetworkProcess tried to write data in caches. Fix painting scrollbars when their width changes. Fix playback of certain YouTube videos with low frame rates. Fix webkit://gpu not working in systems where neither libGL.so.1 nor libOpenGL.so.0 are available. Fix several crashes and rendering issues. Security fixes: CVE-2026-28847, CVE-2026-28883, CVE-2026-28901, CVE-2026-28902, CVE-2026-28903, CVE-2026-28904, CVE-2026-28905, CVE-2026-28907, CVE-2026-28942, CVE-2026-28946, CVE-2026-28947, CVE-2026-28953, CVE-2026-28955, CVE-2026-28958, CVE-2026-43658, CVE-2026-43660

Topics%20covered

Topics Covered

security advisory fedora important performance webkitgtk content issue

Change Log

* Wed Jun 3 2026 Michael Catanzaro - 2.52.4-1 - Update to 2.52.4

References

Fedora Update Notification FEDORA-2026-1557aaef26 2026-06-20 01:06:42.654447+00:00 Name : webkitgtk Product : Fedora 43 Version : 2.52.4 Release : 1.fc43 URL : https://www.webkitgtk.org/ Summary : GTK web content engine library Description : WebKitGTK is the port of the WebKit web rendering engine to the GTK platform.

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-1557aaef26' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
Medium
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Critical

Name: webkitgtk
Product: Fedora 43
Version: 2.52.4
Release: 1.fc43
URL: https://www.webkitgtk.org/
Summary: GTK web content engine library

Topics%20covered

Topics Covered

security advisory fedora important performance webkitgtk content issue

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