Description
A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WebKit | WebKit | 1.10.0 | — |
| WebKitGTK | WebKitGTK | 1.10.0 | — |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
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 | No fix yet | — |
| Debian 14 | wpewebkit | 2.54.0-1 | — |
| Debian 13 | webkit2gtk | 2.54.0-1~deb13u1 | — |
| Debian 13 | wpewebkit | No fix yet | — |
| Debian 12 | wpewebkit +1 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | webkitgtk | No fix yet | — |
| Ubuntu 16.04 LTS | webkitgtk | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | webkit2gtk3 +3 | 2.54.0-1.el9_8 | RHSA-2026:69098 |
| RHEL 8 | webkit2gtk3 +3 | 2.54.0-1.el8_10 | RHSA-2026:74084 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | webkit2gtk3 +3 | 2.54.0-1.el9_8 | ALSA-2026:69098 |
| AlmaLinux 8 | webkit2gtk3 +3 | 2.54.0-1.el8_10 | ALSA-2026:74084 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | webkit2gtk3 | 2.54.0-1.el9_8 | RLSA-2026:69098 |
| Rocky Linux 8 | webkit2gtk3 | 2.54.0-1.el8_10 | RLSA-2026:74084 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | webkit2gtk3 | 2.54.1-150600.12.81.3 | SUSE-SU-2026:4858-1 |
| SLES 15 SP7 | webkit2gtk4 +1 | 2.54.1-150600.12.81.4 | SUSE-SU-2026:4858-1 |
| SLES 15 SP6 | webkit2gtk3 | 2.54.1-150600.12.81.3 | SUSE-SU-2026:4858-1 |
| SLES 15 SP6 | webkit2gtk4 +1 | 2.54.1-150600.12.81.4 | SUSE-SU-2026:4858-1 |
| SLES 15 SP5 | webkit2gtk3 +1 | 2.54.1-150400.4.157.4 | SUSE-SU-2026:4868-1 |
| SLES 15 SP5 | webkit2gtk3-soup2 | 2.54.1-150400.4.157.5 | SUSE-SU-2026:4868-1 |
| SLES 15 SP4 | webkit2gtk3 +1 | 2.54.1-150400.4.157.4 | SUSE-SU-2026:4868-1 |
| SLES 15 SP4 | webkit2gtk3-soup2 | 2.54.1-150400.4.157.5 | SUSE-SU-2026:4868-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | webkit2gtk3 | 2.54.1-150600.12.81.3 | SUSE-SU-2026:4858-1 |
| SLES for SAP 15 SP6 | webkit2gtk4 +1 | 2.54.1-150600.12.81.4 | SUSE-SU-2026:4858-1 |
| SLES for SAP 15 SP5 | webkit2gtk3 +1 | 2.54.1-150400.4.157.4 | SUSE-SU-2026:4868-1 |
| SLES for SAP 15 SP5 | webkit2gtk3-soup2 | 2.54.1-150400.4.157.5 | SUSE-SU-2026:4868-1 |
| SLES for SAP 15 SP4 | webkit2gtk3 +1 | 2.54.1-150400.4.157.4 | SUSE-SU-2026:4868-1 |
| SLES for SAP 15 SP4 | webkit2gtk3-soup2 | 2.54.1-150400.4.157.5 | SUSE-SU-2026:4868-1 |
| SLE HPC 15 SP5 | webkit2gtk3 +1 | 2.54.1-150400.4.157.4 | SUSE-SU-2026:4868-1 |
| SLE HPC 15 SP5 | webkit2gtk3-soup2 | 2.54.1-150400.4.157.5 | SUSE-SU-2026:4868-1 |
| SLE HPC 15 SP4 | webkit2gtk3 +1 | 2.54.1-150400.4.157.4 | SUSE-SU-2026:4868-1 |
| SLE HPC 15 SP4 | webkit2gtk3-soup2 | 2.54.1-150400.4.157.5 | SUSE-SU-2026:4868-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +3 | 2.52.6-1.amzn2.0.2 | ALAS2-2026-3917 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | webkit2gtk3 +3 | 2.54.0-1.el9_8 | ELSA-2026-69098 |
| Oracle Linux 8 | webkit2gtk3 +3 | 2.54.0-1.el8_10 | ELSA-2026-74084 |
Advisories 12
- ALSA-2026:74084 Critical: webkit2gtk3 security update AlmaLinux Security Advisories · Nov 6, 2026
- WID-SEC-2026-3107 WebKitGTK: Schwachstelle ermöglicht Codeausführung BSI CERT-Bund (WID) · Nov 4, 2026
- ALSA-2026:69098 Important: webkit2gtk3 security update AlmaLinux Security Advisories · Oct 29, 2026
- SUSE-SU-2026:4868-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Oct 23, 2026
- SUSE-SU-2026:4858-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Oct 22, 2026
- RHSA-2026:69098 Red Hat Security Advisory: webkit2gtk3 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:74084 Red Hat Security Advisory: webkit2gtk3 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RLSA-2026:74084 Critical: webkit2gtk3 security update Rocky Linux Security Advisories · Oct 1, 2026
- ELSA-2026-74084 Critical: webkit2gtk3 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 1, 2026
- RLSA-2026:69098 Important: webkit2gtk3 security update Rocky Linux Security Advisories · Sep 22, 2026
- ELSA-2026-69098 Important: webkit2gtk3 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 21, 2026
- ALAS2-2026-3917 Important: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 14, 2026
References
- RHSA-2026:69098 vendor-advisory
- RHSA-2026:74084 vendor-advisory
- RHSA-2026:89821 vendor-advisory
- RHSA-2026:89822 vendor-advisory
- RHSA-2026:91631 vendor-advisory
- RHSA-2026:92216 vendor-advisory
- RHSA-2026:92339 vendor-advisory
- RHSA-2026:93435 vendor-advisory
- RHSA-2026:95403 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-83596 vdb-entry
- https://bugs.webkit.org/show_bug.cgi?id=322969
- RHBZ#2526490 issue-tracking