Apple · Safari · CVE-2026-43658
**Name of the Vulnerable Software and Affected Versions**
Safari versions prior to 26.5
iOS versions prior to 18.7.10
iOS versions prior to 26.5
iPadOS versions prior to 18.7.10
iPadOS versions prior to 26.5
macOS Tahoe versions prior to 26.5
tvOS versions prior to 26.5
visionOS versions prior to 26.5
watchOS versions prior to 26.5
WebKitGTK (affected versions not specified)
**Description**
Processing maliciously crafted web content may lead to an unexpected Safari crash due to improper memory handling. This issue involves memory corruption during the processing of web content across multiple Apple operating systems.
**Recommendations**
Update Safari to version 26.5.
Update iOS to version 18.7.10 or 26.5.
Update iPadOS to version 18.7.10 or 26.5.
Update macOS Tahoe to version 26.5.
Update tvOS to version 26.5.
Update visionOS to version 26.5.
Update watchOS to version 26.5.
At the moment, there is no information about a newer version that contains a fix for this vulnerability for WebKitGTK.