Use after free in WPE WebKit and WebKitGTK+ - CVE-2025-43368

Vulnerability identifier: #VU115326

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-43368

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in WebKit Process Model. A remote attacker can trick the victim into opening a specially crafted website and crash the browser.

WPE WebKit
WebKitGTK+
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15 SP5
Debian Linux
SUSE Linux Enterprise Server 15 SP4
SUSE Manager Server 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Proxy 4.3
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Fedora
Basesystem Module
Development Tools Module
Desktop Applications Module
openSUSE Leap
Ubuntu
macOS
iPadOS
Apple iOS
Oracle Java SE
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
webkit2gtk (Ubuntu package)
webkitgtk4 (Red Hat package)
webkit2gtk3 (Red Hat package)
webkitgtk
webkit2gtk (Debian package)
webkit2gtk3
webkit2gtk3-devel
webkit2gtk3-jsc
webkit2gtk3-jsc-devel
webkit2gtk-4_0-injected-bundles
typelib-1_0-WebKit2-4_0
libjavascriptcoregtk-4_0-18-debuginfo
webkit2gtk-4_0-injected-bundles-debuginfo
libjavascriptcoregtk-4_0-18
webkit2gtk3-debugsource
libwebkit2gtk-4_0-37-debuginfo
typelib-1_0-WebKit2WebExtension-4_0
libwebkit2gtk-4_0-37
libwebkit2gtk3-lang
typelib-1_0-JavaScriptCore-4_0
libwebkit2gtk-4_1-0-32bit
webkit2gtk4-minibrowser-debuginfo
libjavascriptcoregtk-4_1-0-32bit-debuginfo
libjavascriptcoregtk-4_0-18-32bit-debuginfo
libwebkit2gtk-4_0-37-32bit-debuginfo
libjavascriptcoregtk-4_0-18-32bit
webkit2gtk3-soup2-devel
webkit2gtk4-minibrowser
webkit2gtk3-soup2-debugsource
webkit2gtk-4_1-injected-bundles
webkit-jsc-4-debuginfo
libwebkit2gtk-4_1-0-32bit-debuginfo
libwebkit2gtk-4_0-37-32bit
libjavascriptcoregtk-4_1-0-32bit
libjavascriptcoregtk-4_1-0-64bit
libjavascriptcoregtk-4_0-18-64bit-debuginfo
libwebkit2gtk-4_0-37-64bit
libwebkit2gtk-4_0-37-64bit-debuginfo
libwebkit2gtk-4_1-0-64bit
libjavascriptcoregtk-4_1-0-64bit-debuginfo
libjavascriptcoregtk-4_0-18-64bit
libwebkit2gtk-4_1-0-64bit-debuginfo
webkitgtk-6_0-injected-bundles-debuginfo
libjavascriptcoregtk-6_0-1-debuginfo
webkit2gtk-4_1-injected-bundles-debuginfo
libjavascriptcoregtk-4_1-0-debuginfo
webkit2gtk4-devel
webkitgtk-6_0-injected-bundles
libjavascriptcoregtk-6_0-1
webkit-jsc-4.1
webkit2gtk4-debugsource
typelib-1_0-WebKit2WebExtension-4_1
webkit-jsc-4
typelib-1_0-JavaScriptCore-6_0
webkit2gtk3-minibrowser-debuginfo
webkit-jsc-4.1-debuginfo
WebKitGTK-4.0-lang
WebKitGTK-6.0-lang
WebKitGTK-4.1-lang
libwebkit2gtk-4_1-0-debuginfo
typelib-1_0-JavaScriptCore-4_1
libwebkitgtk-6_0-4
typelib-1_0-WebKit2-4_1
webkit2gtk3-soup2-minibrowser-debuginfo
webkit2gtk3-minibrowser
libwebkit2gtk-4_1-0
typelib-1_0-WebKit-6_0
webkit2gtk3-soup2-minibrowser
libjavascriptcoregtk-4_1-0
webkit-jsc-6.0-debuginfo
libwebkitgtk-6_0-4-debuginfo
typelib-1_0-WebKitWebProcessExtension-6_0
webkit-jsc-6.0
Apple Safari

Install update from vendor's website.

WPE WebKit - update to 2.48.7
WebKitGTK+ - update to 2.48.7
macOS - update to 26.0 25A354
iPadOS - update to 26.0 23A341
Apple iOS - update to 26.0 23A341
webkit2gtk (Ubuntu package) - addressed in versions 2.48.7-0ubuntu0.22.04.2, 2.48.7-0ubuntu0.24.04.2, 2.48.7-0ubuntu0.25.04.2
webkitgtk4 (Red Hat package) - update to 2.50.0-1.el7_9
webkit2gtk3 (Red Hat package) - addressed in versions 2.50.0-1.el8_2, 2.50.0-1.el8_4, 2.50.0-1.el8_6, 2.50.0-1.el8_8.1, 2.50.0-1.el8_10, 2.50.0-2.el9_0, 2.50.0-2.el9_2, 2.50.0-2.el9_4, 2.50.1-0.el9_6
webkitgtk - addressed in versions 2.50.0-2.fc41, 2.50.0-3.el10_1
webkit2gtk (Debian package) - addressed in versions 2.50.1-1~deb12u1, 2.50.1-1~deb13u1
webkit2gtk3 - update to 2.50.1-1.0.1
webkit2gtk3-devel - update to 2.50.1-1.0.1
webkit2gtk3-jsc - update to 2.50.1-1.0.1
webkit2gtk3-jsc-devel - update to 2.50.1-1.0.1
webkit2gtk-4_0-injected-bundles - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
typelib-1_0-WebKit2-4_0 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_0-18 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
webkit2gtk3-devel - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
webkit2gtk3-debugsource - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
libwebkit2gtk-4_0-37 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
libwebkit2gtk3-lang - addressed in versions 2.50.1-4.44.1, 2.52.0-4.54.1
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.50.1-4.44.1, 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-4.54.1, 2.52.0-150400.4.137.3
libwebkit2gtk-4_1-0-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk4-minibrowser-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_1-0-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_0-18-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_0-37-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_0-18-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk3-soup2-devel - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk4-minibrowser - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk3-soup2-debugsource - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk-4_1-injected-bundles - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit-jsc-4-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_1-0-32bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_0-37-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_1-0-32bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_1-0-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_0-18-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_0-37-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_0-37-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_1-0-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_1-0-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_0-18-64bit - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_1-0-64bit-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkitgtk-6_0-injected-bundles-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-6_0-1-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk-4_1-injected-bundles-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_1-0-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk4-devel - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkitgtk-6_0-injected-bundles - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-6_0-1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit-jsc-4.1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk4-debugsource - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
typelib-1_0-WebKit2WebExtension-4_1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit-jsc-4 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
typelib-1_0-JavaScriptCore-6_0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk3-minibrowser-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit-jsc-4.1-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
WebKitGTK-4.0-lang - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
WebKitGTK-6.0-lang - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
WebKitGTK-4.1-lang - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_1-0-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
typelib-1_0-JavaScriptCore-4_1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkitgtk-6_0-4 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
typelib-1_0-WebKit2-4_1 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk3-soup2-minibrowser-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk3-minibrowser - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkit2gtk-4_1-0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
typelib-1_0-WebKit-6_0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit2gtk3-soup2-minibrowser - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libjavascriptcoregtk-4_1-0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit-jsc-6.0-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
libwebkitgtk-6_0-4-debuginfo - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
typelib-1_0-WebKitWebProcessExtension-6_0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
webkit-jsc-6.0 - addressed in versions 2.50.1-150400.4.127.3, 2.50.1-150600.12.48.3, 2.52.0-150400.4.137.3
Apple Safari - update to 26.0

• https://support.apple.com/en-us/125110
• https://webkitgtk.org/security/WSA-2025-0006.html

• Multiple vulnerabilities in WebKitGTK+ and WPE WebKit
• Multiple vulnerabilities in Apple Safari
• Multiple vulnerabilities in Apple macOS Tahoe
• Multiple vulnerabilities in Apple iOS 26 and iPadOS 26
• Fedora 41 update for webkitgtk
• Fedora EPEL 10.1 update for webkitgtk
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Ubuntu update for webkit2gtk
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Anolis OS update for webkit2gtk3
• SUSE update for webkit2gtk3
• SUSE update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Debian update for webkit2gtk
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for webkitgtk4
• SUSE update for webkit2gtk3
• Multiple vulnerabilities in Oracle Java SE
• SUSE update for webkit2gtk3
• SUSE update for webkit2gtk3