Description
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | Safari | < 26.6 | 26.6 |
| Apple | iOS and iPadOS | < 18.7.10, < 26.6 | 18.7.10 |
| Apple | macOS | < 26.6 | 26.6 |
| Apple | tvOS | < 26.6 | 26.6 |
| Apple | visionOS | < 26.6 | 26.6 |
| Apple | watchOS | < 26.6 | 26.6 |
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 | 2.52.6-1 | — |
| Debian 13 | webkit2gtk | 2.52.6-1~deb13u1 | — |
| Debian 13 | wpewebkit | No fix yet | — |
| Debian 12 | wpewebkit +1 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | webkit2gtk | 2.52.6-0ubuntu0.26.04.1 | USN-8703-1 |
| Ubuntu 24.04 LTS | qtwebkit-opensource-src | No fix yet | — |
| Ubuntu 24.04 LTS | webkit2gtk | 2.52.6-0ubuntu0.24.04.1 | USN-8703-1 |
| Ubuntu 22.04 LTS | wpewebkit +2 | No fix yet | — |
| Ubuntu 20.04 LTS | wpewebkit +2 | No fix yet | — |
| Ubuntu 18.04 LTS | webkitgtk +3 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | webkitgtk +3 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | webkit2gtk3 +2 | 2.52.6-150600.12.74.1 | SUSE-SU-2026:4020-1 |
| SLES 15 SP5 | webkit2gtk3 +2 | 2.52.6-150400.4.149.2 | SUSE-SU-2026:4001-1 |
| SLES 15 SP4 | webkit2gtk3 +2 | 2.52.6-150400.4.149.2 | SUSE-SU-2026:4001-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | webkit2gtk3 +1 | 2.54.1-160000.1.1 | SUSE-SU-2026:24225-1 |
| SLES for SAP 15 SP5 | webkit2gtk3 +2 | 2.52.6-150400.4.149.2 | SUSE-SU-2026:4001-1 |
| SLES for SAP 15 SP4 | webkit2gtk3 +2 | 2.52.6-150400.4.149.2 | SUSE-SU-2026:4001-1 |
| SLES 16.0 | webkit2gtk3 +1 | 2.54.1-160000.1.1 | SUSE-SU-2026:24225-1 |
| SLE HPC 15 SP5 | webkit2gtk3 +2 | 2.52.6-150400.4.149.2 | SUSE-SU-2026:4001-1 |
| SLE HPC 15 SP4 | webkit2gtk3 +2 | 2.52.6-150400.4.149.2 | SUSE-SU-2026:4001-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | webkit2gtk3 +2 | 2.54.1-160000.1.1 | openSUSE-SU-2026:22076-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +3 | 2.52.6-1.amzn2 | ALAS2-2026-3891 |
Advisories 14
- WID-SEC-2026-2940 WebKitGTK: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 4, 2026
- WID-SEC-2026-2546 Apple Safari: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 22, 2026
- SUSE-SU-2026:24225-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Oct 21, 2026
- openSUSE-SU-2026:22076-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Oct 19, 2026
- WID-SEC-2026-2872 Apple Safari, macOS, iOS und iPadOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 14, 2026
- WID-SEC-2026-2543 Apple macOS (Tahoe, Sonoma und Sequoia): Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 14, 2026
- WID-SEC-2026-2537 Apple iOS und iPadOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 14, 2026
- SUSE-SU-2026:4020-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:4001-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Sep 13, 2026
- USN-8703-1 webkit2gtk vulnerabilities Ubuntu Security Notices (USN) · Aug 31, 2026
- ALAS2-2026-3891 Important: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 31, 2026
- NCSC-2026-0319 Kwetsbaarheden verholpen in Apple iOS en iPadOS NCSC-NL (Netherlands) · Aug 20, 2026
- NCSC-2026-0267 Kwetsbaarheden verholpen in Apple MacOS NCSC-NL (Netherlands) · Jul 28, 2026
- NCSC-2026-0266 Kwetsbaarheden verholpen in Apple iOS en iPadOS NCSC-NL (Netherlands) · Jul 28, 2026