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Fedora 43 webkitgtk 2.52.1 Critical DoS Threat Advisory 2026-431948187d

fedora
Calendar Grey April 14, 2026
Dist Fedora Esm H88
Critical update for Fedora 43 webkitgtk enhances security and performance tackling multiple issues from previous versions.
Update to 2.52.1

Summary

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

GTK platform.

Update Information:

Update to 2.52.1. Notable changes from 2.50 to 2.52: Make text look like in other browsers by blending in linear color space. Improved rendering performance by using a different tile size depending on whether GPU rendering is enabled or not. Improved composition scheduling to avoid blocking waiting for tile painting. Improved performance of accelerated 2D canvas by recording operations for batched replay. Improved async scrolling when main thread is busy by avoiding locks and rendering the scrollbars from the scrolling thread. Enabled dynamic MSAA for accelerated 2D canvas rendering. Improved text rendering performance Videos with BT2100-PQ colorspace are now tone-mapped to SDR, ensuring colours do not appear washed out. Added support for the Audio Output Devices API. Added API to handle WebXR permission requests. Added API to query the immersive session status. Added initial API for web extensions. Additional changes from 2.52.0 to 2.52.1: Reduce the amount of us...

Topics%20covered

Topics Covered

security advisory fedora update DoS high webkitgtk

Change Log

* Sat Mar 28 2026 Michael Catanzaro - 2.52.1-1 - Update to 2.52.1 * Sat Mar 21 2026 Michael Catanzaro - 2.52.0-1 - Update to 2.52.0

References


[ 1 ] Bug #2449069 - CVE-2025-43213 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2449069 [ 2 ] Bug #2449073 - CVE-2025-43214 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2449073 [ 3 ] Bug #2449086 - CVE-2025-43457 webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2449086 [ 4 ] Bug #2449089 - CVE-2025-43511 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2449089 [ 5 ] Bug #2449092 - CVE-2025-46299 webkitgtk: Processing maliciously crafted web content may disclose internal states of the app [fedora-all] https://bugzilla.r...

Read the Full Advisory

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-431948187d' 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
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Name: webkitgtk
Product: Fedora 43
Version: 2.52.1
Release: 1.fc43
URL: https://www.webkitgtk.org/
Summary: GTK web content engine library

Topics%20covered

Topics Covered

security advisory fedora update DoS high webkitgtk

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