Description
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | iOS and iPadOS | unspecified – < 14.4 | 14.4 |
| Apple | macOS | unspecified – < 11.2 | 11.2 |
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 | wpewebkit +1 | 2.30.6-1 | — |
| Debian 13 | wpewebkit +1 | 2.30.6-1 | — |
| Debian 12 | wpewebkit +1 | 2.30.6-1 | — |
| Debian 10 | webkit2gtk | 2.30.6-1~deb10u1 | DSA-4877-1 |
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 | 2.30.6-0ubuntu0.20.04.1 | USN-4894-1 |
| Ubuntu 20.04 LTS | wpewebkit +1 | No fix yet | — |
| Ubuntu 18.04 LTS | webkit2gtk | 2.30.6-0ubuntu0.18.04.1 | USN-4894-1 |
| 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 | LibRaw +1 | 0.19.5-3.el8 | RHSA-2021:4381 |
| RHEL 8 | gnome-autoar | 0.2.3-2.el8 | RHSA-2021:4381 |
| RHEL 8 | webkit2gtk3 +3 | 2.32.3-2.el8 | RHSA-2021:4381 |
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 | LibRaw +1 | 0.19.5-3.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | accountsservice +2 | 0.6.55-2.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gdm | 1:40.0-15.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-autoar | 0.2.3-2.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-calculator | 3.28.2-2.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-classic-session +23 | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-control-center +1 | 3.28.2-28.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-online-accounts +1 | 3.28.2-3.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-session +3 | 3.28.1-13.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-settings-daemon | 3.32.0-16.el8.alma | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-shell | 3.32.2-40.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gnome-software +1 | 3.36.1-10.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gsettings-desktop-schemas +1 | 3.32.0-6.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | gtk3 +3 | 3.22.30-8.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | mutter +1 | 3.32.2-60.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | vino | 3.22.0-11.el8 | ALSA-2021:4381 |
| AlmaLinux 8 | webkit2gtk3 +3 | 2.32.3-2.el8 | ALSA-2021:4381 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | LibRaw | 0.19.5-3.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | accountsservice | 0.6.55-2.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gdm | 1:40.0-15.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-autoar | 0.2.3-2.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-calculator | 3.28.2-2.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-control-center | 3.28.2-28.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-online-accounts | 3.28.2-3.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-session | 3.28.1-13.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-settings-daemon | 3.32.0-16.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-shell | 3.32.2-40.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-shell-extensions | 3.32.1-20.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gnome-software | 3.36.1-10.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gsettings-desktop-schemas | 3.32.0-6.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | gtk3 | 3.22.30-8.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | mutter | 3.32.2-60.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | vino | 3.22.0-11.el8 | RLSA-2021:4381 |
| Rocky Linux 8 | webkit2gtk3 | 2.32.3-2.el8 | RLSA-2021:4381 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | webkit2gtk3 | 2.32.0-3.15.1 | SUSE-SU-2021:1430-1 |
| SLES 15 SP1 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SLES 15 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SLES 12 SP5 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SLES 12 SP4 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SLES 12 SP2 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SLES for SAP 15 SP1 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SLES for SAP 15 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SLES for SAP 12 SP5 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SLES for SAP 12 SP4 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SLES for SAP 12 SP3 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SLE HPC 15 SP1 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SLE HPC 15 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SUSE OpenStack Cloud Crowbar 9 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SUSE OpenStack Cloud Crowbar 8 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SUSE OpenStack Cloud 9 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SUSE OpenStack Cloud 8 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SUSE Manager Server 4.0 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SUSE Manager Retail Branch Server 4.0 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SUSE Manager Proxy 4.0 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
| SUSE HPE Helion OpenStack 8 | webkit2gtk3 | 2.32.1-2.63.3 | SUSE-SU-2021:1990-1 |
| SUSE Enterprise Storage 6 | webkit2gtk3 | 2.32.0-3.74.1 | SUSE-SU-2021:1499-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | webkit2gtk3 | 2.32.0-lp152.2.13.1 | openSUSE-SU-2021:0637-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.20 | webkit2gtk | 2.30.6-r0 | — |
| Alpine v3.19 | webkit2gtk | 2.30.6-r0 | — |
| Alpine v3.18 | webkit2gtk | 2.30.6-r0 | — |
| Alpine v3.17 | webkit2gtk | 2.30.6-r0 | — |
| Alpine v3.16 | webkit2gtk | 2.30.6-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.15 | webkit2gtk | 2.30.6-r0 | — |
| Alpine v3.14 | webkit2gtk | 2.30.6-r0 | — |
| Alpine v3.13 | webkit2gtk | 2.30.6-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +3 | 2.38.5-3.amzn2.0.1 | ALAS2-2023-2088 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | LibRaw +1 | 0.19.5-3.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | accountsservice +2 | 0.6.55-2.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gdm | 1:40.0-15.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-autoar | 0.2.3-2.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-calculator | 3.28.2-2.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-classic-session +23 | 3.32.1-20.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-control-center +1 | 3.28.2-28.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-online-accounts +1 | 3.28.2-3.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-session +3 | 3.28.1-13.0.1.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-settings-daemon | 3.32.0-16.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-shell | 3.32.2-40.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gnome-software +1 | 3.36.1-10.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gsettings-desktop-schemas +1 | 3.32.0-6.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | gtk3 +3 | 3.22.30-8.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | mutter +1 | 3.32.2-60.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | vino | 3.22.0-11.el8 | ELSA-2021-4381 |
| Oracle Linux 8 | webkit2gtk3 +3 | 2.32.3-2.el8 | ELSA-2021-4381 |
Advisories 12
- ALSA-2021:4381 Moderate: GNOME security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 2, 2026
- RHSA-2025:10364 Red Hat Security Advisory: webkitgtk4 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2021:4381 Red Hat Security Advisory: GNOME security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 1, 2026
- USN-4894-1 webkit2gtk vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4877-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:4381 Moderate: GNOME security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2021:1990-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1430-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1499-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0637-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · May 7, 2025
- ALAS2-2023-2088 Important: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 28, 2024
- ELSA-2021-4381 Moderate: GNOME security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 16, 2021
References
- https://support.apple.com/en-us/HT212147
- https://support.apple.com/en-us/HT212146
- FEDORA-2021-864dc37032 vendor-advisory
- FEDORA-2021-619711d709 vendor-advisory
- GLSA-202104-03 vendor-advisory