About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.

Safari 15.5
Released May 16, 2022
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to code execution
Description: A memory corruption issue was addressed with improved state management.
WebKit Bugzilla: 238178
CVE-2022-26700: ryuzaki
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A use after free issue was addressed with improved memory management.
WebKit Bugzilla: 236950
CVE-2022-26709: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua wingtecher lab
WebKit Bugzilla: 238171
CVE-2022-26717: Jeonghoon Shin of Theori
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A memory corruption issue was addressed with improved state management.
WebKit Bugzilla: 238183
CVE-2022-26716: SorryMybad (@S0rryMybad) of Kunlun Lab
WebKit Bugzilla: 238699
CVE-2022-26719: Dongzhuo Zhao working with ADLab of Venustech
Additional recognition
WebKit
We would like to acknowledge James Lee and an anonymous researcher for their assistance.
Entry updated May 25, 2022