Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.3, iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3, tvOS 18.3, visionOS 2.3, watchOS 11.3. Processing web content may lead to a denial-of-service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | Safari | < 18.3 | 18.3 |
| Apple | iOS and iPadOS | < 18.3 | 18.3 |
| Apple | macOS | < 15.3 | 15.3 |
| Apple | tvOS | < 18.3 | 18.3 |
| Apple | visionOS | < 2.3 | 2.3 |
| Apple | watchOS | < 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 | wpewebkit +1 | 2.46.6-1 | — |
| Debian 13 | wpewebkit +1 | 2.46.6-1 | — |
| Debian 12 | webkit2gtk | 2.46.6-1~deb12u1 | DSA-5865-1 |
| Debian 12 | wpewebkit | No fix yet | — |
| Debian 11 | webkit2gtk | 2.46.6-1~deb11u1 | DLA-4051-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qtwebkit-opensource-src | No fix yet | — |
| Ubuntu 24.04 LTS | webkit2gtk | 2.46.6-0ubuntu0.24.04.1 | USN-7279-1 |
| Ubuntu 22.04 LTS | webkit2gtk | 2.46.6-0ubuntu0.22.04.1 | USN-7279-1 |
| Ubuntu 22.04 LTS | wpewebkit +1 | No fix yet | — |
| Ubuntu 20.04 LTS | wpewebkit +2 | No fix yet | — |
| Ubuntu 18.04 LTS | webkitgtk +3 | No fix yet | — |
| Ubuntu 16.04 LTS | webkitgtk +3 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | webkit2gtk3 +3 | 2.38.5-1.el9_2.3 | RHSA-2023:4201 |
| RHEL 8 | webkit2gtk3 +3 | 2.46.6-1.el8_10 | RHSA-2025:2034 |
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 9 | webkit2gtk3 +3 | 2.46.6-1.el9_5 | ALSA-2025:2035 |
| AlmaLinux 8 | webkit2gtk3 +3 | 2.46.6-1.el8_10 | ALSA-2025:2034 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | webkit2gtk3 | 2.46.6-1.el8_10 | RLSA-2025:2034 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | webkit2gtk3 +2 | 2.46.6-150600.12.27.1 | SUSE-SU-2025:0691-1 |
| SLES 15 SP5 | webkit2gtk3 +2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SLES 15 SP4 | webkit2gtk3 +2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SLES 15 SP3 | webkit2gtk3 | 2.46.6-150200.133.1 | SUSE-SU-2025:0735-1 |
| SLES 12 SP5 | webkit2gtk3 | 2.46.6-4.28.1 | SUSE-SU-2025:0639-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | webkit2gtk3 +2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SLES for SAP 15 SP4 | webkit2gtk3 +2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SLES for SAP 15 SP3 | webkit2gtk3 | 2.46.6-150200.133.1 | SUSE-SU-2025:0735-1 |
| SLE HPC 15 SP5 | webkit2gtk3 +2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SLE HPC 15 SP4 | webkit2gtk3 +2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SLE HPC 15 SP3 | webkit2gtk3 | 2.46.6-150200.133.1 | SUSE-SU-2025:0735-1 |
| SUSE Manager Server 4.3 | webkit2gtk3-soup2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SUSE Manager Proxy 4.3 | webkit2gtk3-soup2 | 2.46.6-150400.4.106.1 | SUSE-SU-2025:0638-1 |
| SUSE Enterprise Storage 7.1 | webkit2gtk3 | 2.46.6-150200.133.1 | SUSE-SU-2025:0735-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | webkit2gtk3 +2 | 2.46.6-150600.12.27.1 | SUSE-SU-2025:0691-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +3 | 2.46.6-1.amzn2.0.2 | ALAS2-2025-2869 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | webkit2gtk3 +3 | 2.46.6-1.el9_5 | ELSA-2025-2035 |
| Oracle Linux 8 | webkit2gtk3 +3 | 2.46.6-1.el8_10 | ELSA-2025-2034 |
Advisories 21
- ALSA-2025:2035 Important: webkit2gtk3 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:2034 Important: webkit2gtk3 security 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-2023:4201 Red Hat Security Advisory: webkit2gtk3 security update Red Hat Security Advisories (RHSA) · Oct 8, 2026
- RHSA-2025:2034 Red Hat Security Advisory: webkit2gtk3 security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- USN-7279-1 webkit2gtk vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- ALAS2-2025-2869 Important: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 23, 2026
- DSA-5865-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4051-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2025:0691-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0638-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0639-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0735-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-0201 Apple macOS, iPadOS und iOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 23, 2025
- RLSA-2025:2034 Important: webkit2gtk3 security update Rocky Linux Security Advisories · Jul 29, 2025
- WID-SEC-2025-0301 WebKit (GTK und WPE): Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 6, 2025
- ELSA-2025-2035 Important: webkit2gtk3 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Mar 3, 2025
- ELSA-2025-2034 Important: webkit2gtk3 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Mar 3, 2025
- NCSC-2025-0034 Kwetsbaarheden verholpen in Apple iPadOS en iOS NCSC-NL (Netherlands) · Jan 28, 2025
- NCSC-2025-0032 Kwetsbaarheden verholpen in Apple macOS NCSC-NL (Netherlands) · Jan 28, 2025
- WID-SEC-2025-0199 Apple Safari: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 27, 2025