RHSA-2025:23969 — Security Advisory

Red Hat Security Advisory: webkit2gtk3 security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · December 24, 2025

Updated · November 4, 2026

Topic

An update for webkit2gtk3 is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

Security Fix(es):

webkitgtk: webkitgtk: Use-after-free due to improper memory management (CVE-2025-43529)
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2025-43501)
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2025-43531)
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2025-43535)
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash (CVE-2025-43536)
webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (CVE-2025-43541)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.