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A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may bypass Same Origin Policy.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade webkit2gtk3Upgrade webkit2gtk3-develUpgrade webkit2gtk3-jscUpgrade webkit2gtk3-jsc-devel | Apr 27, 2026 | Apr 22, 2026 |
| Amazon Linux Ami 2 | — | Upgrade webkitgtk4-jscUpgrade webkitgtk4Upgrade webkitgtk4-jsc-develUpgrade webkitgtk4-devel | May 20, 2026 | May 20, 2026 |
| Apple Osx Webkit | — | Upgrade macOS to the latest version | Mar 27, 2026 | Mar 24, 2026 |
| Apple Safari | — | Upgrade to Apple Safari version 26.4Uninstall Apple Safari on Windows | Mar 27, 2026 | Mar 27, 2026 |
| Debian | — | Upgrade webkit2gtk | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade webkit2gtk3-develUpgrade webkit2gtk3-jsc-develUpgrade webkit2gtk3Upgrade webkit2gtk3-jsc | Apr 24, 2026 | Mar 28, 2026 |
| Redhat_linux | — | Upgrade webkit2gtk3Upgrade webkit2gtk3-jscUpgrade webkitgtk4-docUpgrade webkit2gtk3-jsc-debuginfoUpgrade webkit2gtk3-devel-debuginfoUpgrade webkitgtk4Upgrade webkitgtk4-develUpgrade webkit2gtk3-jsc-devel-debuginfoUpgrade webkit2gtk3-debuginfoUpgrade webkit2gtk3-jsc-develUpgrade webkit2gtk3-debugsourceNo solution existsUpgrade webkitgtk4-jscUpgrade webkit2gtk3-develUpgrade webkitgtk4-debuginfoUpgrade webkitgtk4-jsc-devel | Apr 23, 2026 | Mar 28, 2026 |
| Rocky_linux | — | Upgrade webkit2gtk3Upgrade webkit2gtk3-debugsourceUpgrade webkit2gtk3-jsc-devel-debuginfoUpgrade webkit2gtk3-jsc-develUpgrade webkit2gtk3-devel-debuginfoUpgrade webkit2gtk3-jscUpgrade webkit2gtk3-debuginfoUpgrade webkit2gtk3-develUpgrade webkit2gtk3-jsc-debuginfo | Apr 28, 2026 | Apr 24, 2026 |
| Ubuntu | — | Upgrade libjavascriptcoregtk-4.1-0Upgrade libwebkitgtk-6.0-4Upgrade libwebkit2gtk-4.1-0Upgrade libjavascriptcoregtk-6.0-1 | May 6, 2026 | Mar 17, 2026 |
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