The issue was addressed with improved memory handling. 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, tvOS 26.3, visionOS 26.3, watchOS 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/126352
https://support.apple.com/en-us/126351
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-2026-20635.json
https://bugzilla.redhat.com/show_bug.cgi?id=2448790
https://access.redhat.com/security/cve/CVE-2026-20635
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