CVE-2026-20636
gir1.2-javascriptcoregtk-4.1: The issue was addressed with improved memory handling
CVE-2026-20636 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2026-20636, released February 11, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.8
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0047
40th percentile
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| 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-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-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-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 |
| 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-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-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 |
| 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 |
| 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 |
| webkit2gtk · Debian 12.15 (bookworm) | 2.50.6-1~deb12u1 | DEBIAN-CVE-2026-20636 | Feb 11, 2026 |
| webkit2gtk · Debian 13.5 (trixie) | 2.50.6-1~deb13u1 | DEBIAN-CVE-2026-20636 | Feb 11, 2026 |
| webkit2gtk · Debian 14 | 2.50.6-1 | DEBIAN-CVE-2026-20636 | Feb 11, 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 |
| wpewebkit · Debian 14 | 2.50.6-1 | DEBIAN-CVE-2026-20636 | Feb 11, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.