This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, 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.
https://support.apple.com/en-us/126354
https://support.apple.com/en-us/126353
https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126347
https://support.apple.com/en-us/126346
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20608.json
https://bugzilla.redhat.com/show_bug.cgi?id=2448789
https://access.redhat.com/security/cve/CVE-2026-20608
https://access.redhat.com/errata/RHSA-2026:9692
https://access.redhat.com/errata/RHSA-2026:22136
https://access.redhat.com/errata/RHSA-2026:19535
https://access.redhat.com/errata/RHSA-2026:19206
https://access.redhat.com/errata/RHSA-2026:16695
https://access.redhat.com/errata/RHSA-2026:16056
https://access.redhat.com/errata/RHSA-2026:14659
https://access.redhat.com/errata/RHSA-2026:13845
https://access.redhat.com/errata/RHSA-2026:11814