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CVE-2026-64778

Fixed in a distro release EPSS <1%CVSS 6.5

The issue was addressed with improved checks. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Visiting a maliciously crafted website may leak sensitive data.

Published 2026-08-17 · CVE record · OSV

Products: apple safari, Apple iOS and iPadOS, Apple macOS, Apple tvOS, Apple visionOS, Apple watchOS

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
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-ESPOSwebkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSwebkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSwebkit2gtk42.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSwebkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSwebkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSwebkit2gtk42.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSwebkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSwebkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSwebkit2gtk42.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSSwebkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSSwebkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSSwebkit2gtk42.54.1-150400.4.152.2
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-LTSSwebkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise Server 15 SP4-LTSSwebkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise Server 15 SP4-LTSSwebkit2gtk42.54.1-150400.4.152.2
SUSE Linux Enterprise Server 15 SP5-LTSSwebkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise Server 15 SP5-LTSSwebkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise Server 15 SP5-LTSSwebkit2gtk42.54.1-150400.4.152.2
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 16.0webkit2gtk32.54.1-160000.1.1
SUSE Linux Enterprise Server 16.0webkit2gtk42.54.1-160000.1.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4webkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise Server for SAP Applications 15 SP4webkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise Server for SAP Applications 15 SP4webkit2gtk42.54.1-150400.4.152.2
SUSE Linux Enterprise Server for SAP Applications 15 SP5webkit2gtk32.54.1-150400.4.152.2
SUSE Linux Enterprise Server for SAP Applications 15 SP5webkit2gtk3-soup22.54.1-150400.4.152.2
SUSE Linux Enterprise Server for SAP Applications 15 SP5webkit2gtk42.54.1-150400.4.152.2
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
SUSE Linux Enterprise Server for SAP applications 16.0webkit2gtk32.54.1-160000.1.1
SUSE Linux Enterprise Server for SAP applications 16.0webkit2gtk42.54.1-160000.1.1
openSUSE Leap 16.0webkit2gtk32.54.1-160000.1.1
openSUSE Leap 16.0webkit2gtk3-soup22.54.1-160000.1.1
openSUSE Leap 16.0webkit2gtk42.54.1-160000.1.1