Description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | iOS and iPadOS | unspecified – < 14.5 | 14.5 |
| Apple | tvOS | unspecified – < 14.5 | 14.5 |
| Apple | watchOS | unspecified – < 7.4 | 7.4 |
| Apple | macOS | unspecified – < 11.3 | 11.3 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | webkit2gtk | 2.30.1-1 | — |
| Debian 14 | wpewebkit | 2.30.0-1 | — |
| Debian 13 | webkit2gtk | 2.30.1-1 | — |
| Debian 13 | wpewebkit | 2.30.0-1 | — |
| Debian 12 | webkit2gtk | 2.30.1-1 | — |
| Debian 12 | wpewebkit | 2.30.0-1 | — |
| Debian 10 | webkit2gtk | 2.30.3-1~deb10u1 | DSA-4797-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qtwebkit-opensource-src | No fix yet | — |
| Ubuntu 22.04 LTS | wpewebkit +1 | No fix yet | — |
| Ubuntu 20.04 LTS | webkit2gtk | 2.30.3-0ubuntu0.20.04.1 | — |
| Ubuntu 20.04 LTS | wpewebkit +1 | No fix yet | — |
| Ubuntu 18.04 LTS | webkit2gtk | 2.30.3-0ubuntu0.18.04.1 | — |
| Ubuntu 18.04 LTS | webkitgtk +2 | No fix yet | — |
| Ubuntu 16.04 LTS | webkitgtk +3 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | gdm | 1:3.28.3-39.el8 | RHSA-2021:1586 |
| RHEL 8 | glib2 +5 | 2.56.4-9.el8 | RHSA-2021:1586 |
| RHEL 8 | webkit2gtk3 +3 | 2.30.4-1.el8 | RHSA-2021:1586 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 ELS | webkitgtk4 +4 | 2.48.3-2.el7_9 | RHSA-2025:10364 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | OpenEXR-libs +1 | 2.2.0-12.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | accountsservice-devel | 0.6.55-1.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | atkmm +2 | 2.24.2-7.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | cairomm +2 | 1.12.0-8.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | chrome-gnome-shell | 10.1-7.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | dleyna-core +1 | 0.6.0-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | enchant2 +1 | 2.2.3-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gamin +1 | 0.1.10-32.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | geoclue2 +3 | 2.5.5-2.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | geocode-glib +1 | 3.26.0-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gjs +1 | 1.56.2-5.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | glib2-doc +1 | 2.56.4-9.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | glibmm24 +2 | 2.56.0-2.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gnome-boxes | 3.36.5-8.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gnome-photos +1 | 3.28.1-4.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gnome-terminal +1 | 3.28.3-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gtk-doc | 1.28-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gtk2 +4 | 2.24.32-5.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gtkmm24 +2 | 2.24.5-6.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gtkmm30 +2 | 3.22.2-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | gvfs +10 | 1.36.2-11.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | libdazzle +1 | 3.28.5-2.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | libepubgen +1 | 0.1.0-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | libsass +1 | 3.4.5-6.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | libsigc++20 +2 | 2.10.0-6.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | libvisual +1 | 1:0.4.0-25.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | mutter-devel | 3.32.2-57.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | nautilus +2 | 3.28.1-15.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | pangomm +2 | 2.40.1-6.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | soundtouch +1 | 2.0.0-3.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | vala +1 | 0.40.19-2.el8 | ALSA-2021:1586 |
| AlmaLinux 8 | woff2 +1 | 1.0.2-5.el8 | ALSA-2021:1586 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | OpenEXR | 2.2.0-12.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | accountsservice | 0.6.55-1.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | atkmm | 2.24.2-7.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | cairomm | 1.12.0-8.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | chrome-gnome-shell | 10.1-7.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | dleyna-core +1 | 0.6.0-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | enchant2 | 2.2.3-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gamin | 0.1.10-32.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gdm | 1:3.28.3-39.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | geoclue2 | 2.5.5-2.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | geocode-glib | 3.26.0-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gjs | 1.56.2-5.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | glibmm24 | 2.56.0-2.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-boxes | 3.36.5-8.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-control-center | 3.28.2-27.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-online-accounts | 3.28.2-2.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-photos | 3.28.1-4.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-settings-daemon | 3.32.0-14.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-shell | 3.32.2-30.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-software | 3.36.1-5.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gnome-terminal | 3.28.3-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gtk-doc | 1.28-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gtk2 | 2.24.32-5.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gtkmm24 | 2.24.5-6.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gtkmm30 | 3.22.2-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | gvfs | 1.36.2-11.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | libdazzle | 3.28.5-2.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | libepubgen | 0.1.0-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | libsass | 3.4.5-6.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | libsigc++20 | 2.10.0-6.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | libvisual | 1:0.4.0-25.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | mutter | 3.32.2-57.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | nautilus | 3.28.1-15.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | pangomm | 2.40.1-6.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | soundtouch | 2.0.0-3.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | vala | 0.40.19-2.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | webkit2gtk3 | 2.30.4-1.el8 | RLSA-2021:1586 |
| Rocky Linux 8 | woff2 | 1.0.2-5.el8 | RLSA-2021:1586 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SLES 15 SP2 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SLES 15 SP1 | webkit2gtk3 | 2.34.3-3.92.1 | SUSE-SU-2022:0183-1 |
| SLES 15 | webkit2gtk3 | 2.34.3-3.92.1 | SUSE-SU-2022:0183-1 |
| SLES 12 SP5 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
Show 23 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SLES 12 SP3 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SLES 12 SP2 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SLES for SAP 15 SP2 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SLES for SAP 15 SP1 | webkit2gtk3 | 2.34.3-3.92.1 | SUSE-SU-2022:0183-1 |
| SLES for SAP 15 | webkit2gtk3 | 2.34.3-3.92.1 | SUSE-SU-2022:0183-1 |
| SLES for SAP 12 SP5 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SLES for SAP 12 SP4 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SLES for SAP 12 SP3 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SLE Real Time 15 SP2 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-2 |
| SLE HPC 15 SP2 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SLE HPC 15 SP1 | webkit2gtk3 | 2.34.3-3.92.1 | SUSE-SU-2022:0183-1 |
| SLE HPC 15 | webkit2gtk3 | 2.34.3-3.92.1 | SUSE-SU-2022:0183-1 |
| SUSE OpenStack Cloud Crowbar 9 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SUSE OpenStack Cloud Crowbar 8 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SUSE OpenStack Cloud 9 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SUSE OpenStack Cloud 8 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SUSE Manager Server 4.1 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE Manager Retail Branch Server 4.1 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE Manager Proxy 4.1 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE HPE Helion OpenStack 8 | webkit2gtk3 | 2.34.3-2.82.1 | SUSE-SU-2022:0142-1 |
| SUSE Enterprise Storage 7 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE Enterprise Storage 6 | webkit2gtk3 | 2.34.3-3.92.1 | SUSE-SU-2022:0183-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | webkit2gtk3 | 2.34.3-23.3 | openSUSE-SU-2022:0182-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.20 | webkit2gtk | 2.30.0-r0 | — |
| Alpine v3.19 | webkit2gtk | 2.30.0-r0 | — |
| Alpine v3.18 | webkit2gtk | 2.30.0-r0 | — |
| Alpine v3.17 | webkit2gtk | 2.30.0-r0 | — |
| Alpine v3.16 | webkit2gtk | 2.30.0-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.15 | webkit2gtk | 2.30.0-r0 | — |
| Alpine v3.14 | webkit2gtk | 2.30.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +3 | 2.38.5-3.amzn2.0.1 | ALAS2-2023-2088 |
Advisories 11
- ALSA-2021:1586 Moderate: GNOME security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:10364 Red Hat Security Advisory: webkitgtk4 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2021:1586 Red Hat Security Advisory: GNOME security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-4797-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:1586 Moderate: GNOME security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2022:0182-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0183-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0182-2 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0182-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0142-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2023-2088 Important: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 28, 2024