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CVE-2026-78376

Fixed in a distro release EPSS <1%CVSS 8.8

A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory handling and result in memory corruption.

Published 2026-08-24 · CVE record · OSV

Products: Webkit, WebKitGTK+, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7

Distro releases

ReleasePackageFixed in
AlmaLinux 8webkit2gtk32.54.0-1.el8_10
AlmaLinux 8webkit2gtk3-devel2.54.0-1.el8_10
AlmaLinux 8webkit2gtk3-jsc2.54.0-1.el8_10
AlmaLinux 8webkit2gtk3-jsc-devel2.54.0-1.el8_10
AlmaLinux 9webkit2gtk32.54.0-1.el9_8
AlmaLinux 9webkit2gtk3-devel2.54.0-1.el9_8
AlmaLinux 9webkit2gtk3-jsc2.54.0-1.el9_8
AlmaLinux 9webkit2gtk3-jsc-devel2.54.0-1.el9_8
Amazon Linux 2webkitgtk42.52.6-1.amzn2.0.2
Amazon Linux 2webkitgtk4-devel2.52.6-1.amzn2.0.2
Amazon Linux 2webkitgtk4-jsc2.52.6-1.amzn2.0.2
Amazon Linux 2webkitgtk4-jsc-devel2.52.6-1.amzn2.0.2
Debian 12webkit2gtkno fix
Debian 12wpewebkitno fix
Debian 13webkit2gtk2.54.0-1~deb13u1
Debian 13wpewebkitno fix
Debian 14webkit2gtkno fix
Debian 14wpewebkit2.54.0-1
Red Hat Enterprise Linux 8webkit2gtk30:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-debuginfo0:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-debugsource0:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-devel0:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-devel-debuginfo0:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-jsc0:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-jsc-debuginfo0:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-jsc-devel0:2.54.0-1.el8_10
Red Hat Enterprise Linux 8webkit2gtk3-jsc-devel-debuginfo0:2.54.0-1.el8_10
Red Hat Enterprise Linux 9webkit2gtk30:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-debuginfo0:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-debugsource0:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-devel0:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-devel-debuginfo0:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-jsc0:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-jsc-debuginfo0:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-jsc-devel0:2.54.0-1.el9_8
Red Hat Enterprise Linux 9webkit2gtk3-jsc-devel-debuginfo0:2.54.0-1.el9_8
Rocky Linux 8webkit2gtk30:2.54.0-1.el8_10
Rocky Linux 9webkit2gtk30:2.54.0-1.el9_8
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSwebkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSwebkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSwebkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSwebkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSwebkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSwebkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSwebkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSwebkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSwebkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSSwebkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSSwebkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSSwebkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise Module for Basesystem 15 SP7webkit2gtk3-soup22.54.1-150600.12.81.4
SUSE Linux Enterprise Module for Basesystem 15 SP7webkit2gtk42.54.1-150600.12.81.4
SUSE Linux Enterprise Module for Desktop Applications 15 SP7webkit2gtk32.54.1-150600.12.81.3
SUSE Linux Enterprise Module for Development Tools 15 SP7webkit2gtk42.54.1-150600.12.81.4
SUSE Linux Enterprise Server 15 SP4-LTSSwebkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise Server 15 SP4-LTSSwebkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise Server 15 SP4-LTSSwebkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise Server 15 SP5-LTSSwebkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise Server 15 SP5-LTSSwebkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise Server 15 SP5-LTSSwebkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise Server 15 SP6-LTSSwebkit2gtk32.54.1-150600.12.81.3
SUSE Linux Enterprise Server 15 SP6-LTSSwebkit2gtk3-soup22.54.1-150600.12.81.4
SUSE Linux Enterprise Server 15 SP6-LTSSwebkit2gtk42.54.1-150600.12.81.4
SUSE Linux Enterprise Server for SAP Applications 15 SP4webkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise Server for SAP Applications 15 SP4webkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise Server for SAP Applications 15 SP4webkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise Server for SAP Applications 15 SP5webkit2gtk32.54.1-150400.4.157.4
SUSE Linux Enterprise Server for SAP Applications 15 SP5webkit2gtk3-soup22.54.1-150400.4.157.5
SUSE Linux Enterprise Server for SAP Applications 15 SP5webkit2gtk42.54.1-150400.4.157.4
SUSE Linux Enterprise Server for SAP Applications 15 SP6webkit2gtk32.54.1-150600.12.81.3
SUSE Linux Enterprise Server for SAP Applications 15 SP6webkit2gtk3-soup22.54.1-150600.12.81.4
SUSE Linux Enterprise Server for SAP Applications 15 SP6webkit2gtk42.54.1-150600.12.81.4
Ubuntu 16.04 LTSqtwebkit-opensource-srcno fix
Ubuntu 16.04 LTSqtwebkit-sourceno fix
Ubuntu 16.04 LTSwebkit2gtkno fix
Ubuntu 16.04 LTSwebkitgtkno fix
Ubuntu 18.04 LTSqtwebkit-opensource-srcno fix
Ubuntu 18.04 LTSqtwebkit-sourceno fix
Ubuntu 18.04 LTSwebkit2gtkno fix
Ubuntu 18.04 LTSwebkitgtkno fix
Ubuntu 20.04 LTSqtwebkit-opensource-srcno fix
Ubuntu 20.04 LTSwebkit2gtkno fix
Ubuntu 20.04 LTSwpewebkitno fix
Ubuntu 22.04 LTSqtwebkit-opensource-srcno fix
Ubuntu 22.04 LTSwebkit2gtkno fix
Ubuntu 22.04 LTSwpewebkitno fix
Ubuntu 24.04 LTSqtwebkit-opensource-srcno fix
Ubuntu 24.04 LTSwebkit2gtkno fix
Ubuntu 26.04 LTSwebkit2gtkno fix
Ubuntu 26.10webkit2gtkno fix