CVE-2026-20643
WebKit: Processing maliciously crafted web content may bypass Same Origin Policy
CVE-2026-20643 is fixed in 21 products on 2 platforms, first by DEBIAN-CVE-2026-20643, released March 17, 2026. It is not reported as exploited. Patch Radar priority: High.
HighFixed on 2 platforms
CVSS
8.8
MEDIUM
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0037
30th percentile
A cross-origin issue in the Navigation API was addressed with improved input validation. WebKit Bugzilla: 306050
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| macOS | |||
| Tahoe | 26.4 | Tahoe 26.4 | Mar 24, 2026 |
| Linux | |||
| gir1.2-javascriptcoregtk-4.1 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | gir1.2-javascriptcoregtk-4.1 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| gir1.2-javascriptcoregtk-4.1 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | gir1.2-javascriptcoregtk-4.1 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| gir1.2-javascriptcoregtk-4.1 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | gir1.2-javascriptcoregtk-4.1 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| gir1.2-javascriptcoregtk-6.0 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | gir1.2-javascriptcoregtk-6.0 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| gir1.2-javascriptcoregtk-6.0 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | gir1.2-javascriptcoregtk-6.0 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| gir1.2-javascriptcoregtk-6.0 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | gir1.2-javascriptcoregtk-6.0 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| gir1.2-webkit-6.0 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | gir1.2-webkit-6.0 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| gir1.2-webkit-6.0 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | gir1.2-webkit-6.0 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| gir1.2-webkit-6.0 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | gir1.2-webkit-6.0 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| gir1.2-webkit2-4.1 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | gir1.2-webkit2-4.1 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| gir1.2-webkit2-4.1 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | gir1.2-webkit2-4.1 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| gir1.2-webkit2-4.1 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | gir1.2-webkit2-4.1 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| libjavascriptcoregtk-4.0-bin · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | libjavascriptcoregtk-4.0-bin 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| libjavascriptcoregtk-4.0-bin · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | libjavascriptcoregtk-4.0-bin 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| libjavascriptcoregtk-4.1-0 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | libjavascriptcoregtk-4.1-0 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| libjavascriptcoregtk-4.1-0 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | libjavascriptcoregtk-4.1-0 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| libjavascriptcoregtk-4.1-0 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | libjavascriptcoregtk-4.1-0 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| libjavascriptcoregtk-6.0-1 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | libjavascriptcoregtk-6.0-1 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| libjavascriptcoregtk-6.0-1 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | libjavascriptcoregtk-6.0-1 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| libjavascriptcoregtk-6.0-1 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | libjavascriptcoregtk-6.0-1 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| libjavascriptcoregtk-bin · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | libjavascriptcoregtk-bin 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| libjavascriptcoregtk-bin · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | libjavascriptcoregtk-bin 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| libjavascriptcoregtk-bin · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | libjavascriptcoregtk-bin 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| libwebkit2gtk-4.1-0 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | libwebkit2gtk-4.1-0 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| libwebkit2gtk-4.1-0 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | libwebkit2gtk-4.1-0 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| libwebkit2gtk-4.1-0 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | libwebkit2gtk-4.1-0 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| libwebkitgtk-6.0-4 · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | libwebkitgtk-6.0-4 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| libwebkitgtk-6.0-4 · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | libwebkitgtk-6.0-4 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| libwebkitgtk-6.0-4 · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | libwebkitgtk-6.0-4 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| webkit2gtk · Debian 13.5 (trixie) | 2.52.3-2~deb13u1 | DEBIAN-CVE-2026-20643 | Mar 17, 2026 |
| webkit2gtk · Debian 14 | 2.52.1-1 | DEBIAN-CVE-2026-20643 | Mar 17, 2026 |
| webkit2gtk-driver · Ubuntu 24.04.5 LTS (noble) | 2.52.3-0ubuntu0.24.04.1 | webkit2gtk-driver 2.52.3-0ubuntu0.24.04.1 | Mar 24, 2026 |
| webkit2gtk-driver · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | webkit2gtk-driver 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| webkit2gtk3 · RHEL 8 | 0:2.52.3-1.el8_10 | RHSA-2026:10702 | Apr 30, 2026 |
| webkit2gtk3 · RHEL 9 | 0:2.52.3-0.el9_7.1 | RHSA-2026:9692 | Apr 30, 2026 |
| webkit2gtk3 · almalinux 8 | 2.52.3-1.el8_10 | ALSA-2026:10702 | Apr 27, 2026 |
| webkit2gtk3 · almalinux 9 | 2.52.3-1.el9_8 | ALSA-2026:19206 | May 19, 2026 |
| webkit2gtk3 · ol 8 | 0:2.52.3-1.el8_10 | ELSA-2026-10702 | Apr 27, 2026 |
| webkit2gtk3 · ol 9 | 0:2.52.3-0.el9_7.1 | ELSA-2026-9692 | Apr 22, 2026 |
| webkit2gtk3 · opensuse-leap 15.6 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk3 · opensuse-leap 16.0 | 2.52.1-160000.1.1 | OPENSUSE-SU-2026:20518-1 | Apr 13, 2026 |
| webkit2gtk3 · rocky 8 | 0:2.52.3-1.el8_10 | RLSA-2026:10702 | Apr 27, 2026 |
| webkit2gtk3 · rocky 9 | 0:2.52.3-1.el9_8 | RLSA-2026:19206 | May 28, 2026 |
| webkit2gtk3 · sles 15.6 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk3 · sles 15.7 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk3 · sles 16.0 | 2.52.1-160000.1.1 | SUSE-SU-2026:21180-1 | Apr 13, 2026 |
| webkit2gtk3-devel · RHEL 8 | 0:2.52.3-1.el8_10 | RHSA-2026:10702 | Apr 30, 2026 |
| webkit2gtk3-devel · RHEL 9 | 0:2.52.3-0.el9_7.1 | RHSA-2026:9692 | Apr 30, 2026 |
| webkit2gtk3-devel · almalinux 8 | 2.52.3-1.el8_10 | ALSA-2026:10702 | Apr 27, 2026 |
| webkit2gtk3-devel · almalinux 9 | 2.52.3-1.el9_8 | ALSA-2026:19206 | May 19, 2026 |
| webkit2gtk3-devel · ol 8 | 0:2.52.3-1.el8_10 | ELSA-2026-10702 | Apr 27, 2026 |
| webkit2gtk3-devel · ol 9 | 0:2.52.3-0.el9_7.1 | ELSA-2026-9692 | Apr 22, 2026 |
| webkit2gtk3-jsc · RHEL 8 | 0:2.52.3-1.el8_10 | RHSA-2026:10702 | Apr 30, 2026 |
| webkit2gtk3-jsc · RHEL 9 | 0:2.52.3-0.el9_7.1 | RHSA-2026:9692 | Apr 30, 2026 |
| webkit2gtk3-jsc · almalinux 8 | 2.52.3-1.el8_10 | ALSA-2026:10702 | Apr 27, 2026 |
| webkit2gtk3-jsc · almalinux 9 | 2.52.3-1.el9_8 | ALSA-2026:19206 | May 19, 2026 |
| webkit2gtk3-jsc · ol 8 | 0:2.52.3-1.el8_10 | ELSA-2026-10702 | Apr 27, 2026 |
| webkit2gtk3-jsc · ol 9 | 0:2.52.3-0.el9_7.1 | ELSA-2026-9692 | Apr 22, 2026 |
| webkit2gtk3-jsc-devel · RHEL 8 | 0:2.52.3-1.el8_10 | RHSA-2026:10702 | Apr 30, 2026 |
| webkit2gtk3-jsc-devel · RHEL 9 | 0:2.52.3-0.el9_7.1 | RHSA-2026:9692 | Apr 30, 2026 |
| webkit2gtk3-jsc-devel · almalinux 8 | 2.52.3-1.el8_10 | ALSA-2026:10702 | Apr 27, 2026 |
| webkit2gtk3-jsc-devel · almalinux 9 | 2.52.3-1.el9_8 | ALSA-2026:19206 | May 19, 2026 |
| webkit2gtk3-jsc-devel · ol 8 | 0:2.52.3-1.el8_10 | ELSA-2026-10702 | Apr 27, 2026 |
| webkit2gtk3-jsc-devel · ol 9 | 0:2.52.3-0.el9_7.1 | ELSA-2026-9692 | Apr 22, 2026 |
| webkit2gtk3-soup2 · opensuse-leap 15.6 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk3-soup2 · opensuse-leap 16.0 | 2.52.1-160000.1.1 | OPENSUSE-SU-2026:20518-1 | Apr 13, 2026 |
| webkit2gtk3-soup2 · sles 15.6 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk3-soup2 · sles 15.7 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk4 · opensuse-leap 15.6 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk4 · opensuse-leap 16.0 | 2.52.1-160000.1.1 | OPENSUSE-SU-2026:20518-1 | Apr 13, 2026 |
| webkit2gtk4 · sles 15.6 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk4 · sles 15.7 | 2.52.1-150600.12.63.1 | SUSE-SU-2026:1364-1 | Apr 15, 2026 |
| webkit2gtk4 · sles 16.0 | 2.52.1-160000.1.1 | SUSE-SU-2026:21180-1 | Apr 13, 2026 |
| webkitgtk-webdriver · Ubuntu 25.10 (questing) | 2.52.3-0ubuntu0.25.10.1 | webkitgtk-webdriver 2.52.3-0ubuntu0.25.10.1 | Mar 24, 2026 |
| webkitgtk-webdriver · Ubuntu 26.04.1 LTS (resolute) | 2.52.3-0ubuntu0.26.04.2 | webkitgtk-webdriver 2.52.3-0ubuntu0.26.04.2 | Mar 24, 2026 |
| wpewebkit · Debian 14 | 2.52.1-1 | DEBIAN-CVE-2026-20643 | Mar 17, 2026 |
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