CVE-2026-64779
WebKit Storage: Processing maliciously crafted web content may lead to an unexpected Safari crash
CVE-2026-64779 is fixed in 9 products on 2 platforms, first by RHSA-2026:74084, released July 21, 2026. It is not reported as exploited. Patch Radar priority: High.
HighFixed on 2 platforms
CVSS
9.6
LOW
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0038
32nd percentile
A memory corruption vulnerability was addressed with improved locking. WebKit Bugzilla: 321485
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| macOS | |||
| Tahoe | 26.6.2 | Tahoe 26.6.2 | Aug 17, 2026 |
| Linux | |||
| webkit2gtk · Debian 13.5 (trixie) | 2.54.0-1~deb13u1 | DEBIAN-CVE-2026-64779 | Aug 17, 2026 |
| webkit2gtk3 · RHEL 8 | 0:2.54.0-1.el8_10 | RHSA-2026:74084 | Jul 21, 2026 |
| webkit2gtk3 · RHEL 9 | 0:2.54.0-1.el9_8 | RHSA-2026:69098 | Aug 22, 2026 |
| webkit2gtk3 · almalinux 8 | 2.54.0-1.el8_10 | ALSA-2026:74084 | Sep 30, 2026 |
| webkit2gtk3 · almalinux 9 | 2.54.0-1.el9_8 | ALSA-2026:69098 | Sep 21, 2026 |
| webkit2gtk3 · ol 8 | 0:2.54.0-1.el8_10 | ELSA-2026-74084 | Oct 1, 2026 |
| webkit2gtk3 · ol 9 | 0:2.54.0-1.el9_8 | ELSA-2026-69098 | Sep 21, 2026 |
| webkit2gtk3 · opensuse-leap 16.0 | 2.54.1-160000.1.1 | OPENSUSE-SU-2026:22076-1 | Nov 7, 2026 |
| webkit2gtk3 · rocky 8 | 0:2.54.0-1.el8_10 | RLSA-2026:74084 | Oct 1, 2026 |
| webkit2gtk3 · rocky 9 | 0:2.54.0-1.el9_8 | RLSA-2026:69098 | Sep 22, 2026 |
| webkit2gtk3 · sles 15.6 | 2.54.1-150600.12.81.3 | SUSE-SU-2026:4858-1 | Nov 7, 2026 |
| webkit2gtk3 · sles 15.7 | 2.54.1-150600.12.81.3 | SUSE-SU-2026:4858-1 | Nov 7, 2026 |
| webkit2gtk3 · sles 16.0 | 2.54.1-160000.1.1 | SUSE-SU-2026:24225-1 | Nov 7, 2026 |
| webkit2gtk3-devel · RHEL 8 | 0:2.54.0-1.el8_10 | RHSA-2026:74084 | Jul 21, 2026 |
| webkit2gtk3-devel · RHEL 9 | 0:2.54.0-1.el9_8 | RHSA-2026:69098 | Aug 22, 2026 |
| webkit2gtk3-devel · almalinux 8 | 2.54.0-1.el8_10 | ALSA-2026:74084 | Sep 30, 2026 |
| webkit2gtk3-devel · almalinux 9 | 2.54.0-1.el9_8 | ALSA-2026:69098 | Sep 21, 2026 |
| webkit2gtk3-devel · ol 8 | 0:2.54.0-1.el8_10 | ELSA-2026-74084 | Oct 1, 2026 |
| webkit2gtk3-devel · ol 9 | 0:2.54.0-1.el9_8 | ELSA-2026-69098 | Sep 21, 2026 |
| webkit2gtk3-jsc · RHEL 8 | 0:2.54.0-1.el8_10 | RHSA-2026:74084 | Jul 21, 2026 |
| webkit2gtk3-jsc · RHEL 9 | 0:2.54.0-1.el9_8 | RHSA-2026:69098 | Aug 22, 2026 |
| webkit2gtk3-jsc · almalinux 8 | 2.54.0-1.el8_10 | ALSA-2026:74084 | Sep 30, 2026 |
| webkit2gtk3-jsc · almalinux 9 | 2.54.0-1.el9_8 | ALSA-2026:69098 | Sep 21, 2026 |
| webkit2gtk3-jsc · ol 8 | 0:2.54.0-1.el8_10 | ELSA-2026-74084 | Oct 1, 2026 |
| webkit2gtk3-jsc · ol 9 | 0:2.54.0-1.el9_8 | ELSA-2026-69098 | Sep 21, 2026 |
| webkit2gtk3-jsc-devel · RHEL 8 | 0:2.54.0-1.el8_10 | RHSA-2026:74084 | Jul 21, 2026 |
| webkit2gtk3-jsc-devel · RHEL 9 | 0:2.54.0-1.el9_8 | RHSA-2026:69098 | Aug 22, 2026 |
| webkit2gtk3-jsc-devel · almalinux 8 | 2.54.0-1.el8_10 | ALSA-2026:74084 | Sep 30, 2026 |
| webkit2gtk3-jsc-devel · almalinux 9 | 2.54.0-1.el9_8 | ALSA-2026:69098 | Sep 21, 2026 |
| webkit2gtk3-jsc-devel · ol 8 | 0:2.54.0-1.el8_10 | ELSA-2026-74084 | Oct 1, 2026 |
| webkit2gtk3-jsc-devel · ol 9 | 0:2.54.0-1.el9_8 | ELSA-2026-69098 | Sep 21, 2026 |
| webkit2gtk3-soup2 · opensuse-leap 16.0 | 2.54.1-160000.1.1 | OPENSUSE-SU-2026:22076-1 | Nov 7, 2026 |
| webkit2gtk3-soup2 · sles 15.6 | 2.54.1-150600.12.81.4 | SUSE-SU-2026:4858-1 | Nov 7, 2026 |
| webkit2gtk3-soup2 · sles 15.7 | 2.54.1-150600.12.81.4 | SUSE-SU-2026:4858-1 | Nov 7, 2026 |
| webkit2gtk4 · opensuse-leap 16.0 | 2.54.1-160000.1.1 | OPENSUSE-SU-2026:22076-1 | Nov 7, 2026 |
| webkit2gtk4 · sles 15.6 | 2.54.1-150600.12.81.4 | SUSE-SU-2026:4858-1 | Nov 7, 2026 |
| webkit2gtk4 · sles 15.7 | 2.54.1-150600.12.81.4 | SUSE-SU-2026:4858-1 | Nov 7, 2026 |
| webkit2gtk4 · sles 16.0 | 2.54.1-160000.1.1 | SUSE-SU-2026:24225-1 | Nov 7, 2026 |
| wpewebkit · Debian 14 | 2.54.0-1 | DEBIAN-CVE-2026-64779 | Aug 17, 2026 |
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