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 releases page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.
Safari 16.6
Released July 24, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: A website may be able to track sensitive user information
Description: A logic issue was addressed with improved state management.
WebKit Bugzilla: 257822
CVE-2023-38599: Hritvik Taneja, Jason Kim, Jie Jeff Xu, Stephan van Schaik, Daniel Genkin, and Yuval Yarom
Entry added July 27, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing a document may lead to a cross site scripting attack
Description: This issue was addressed with improved checks.
WebKit Bugzilla: 257299
CVE-2023-32445: Johan Carlsson (joaxcar)
Entry added July 27, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: A logic issue was addressed with improved restrictions.
WebKit Bugzilla: 257331
CVE-2023-38592: Narendra Bhati (twitter.com/imnarendrabhati) of Suma Soft Pvt. Ltd, Pune - India, Valentino Dalla Valle, Pedro Bernardo, Marco Squarcina, and Lorenzo Veronese of TU Wien
Entry added July 27, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: A website may be able to bypass Same Origin Policy
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 256549
CVE-2023-38572: Narendra Bhati (twitter.com/imnarendrabhati) of Suma Soft Pvt. Ltd, Pune - India
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 256865
CVE-2023-38594: Yuhao Hu
WebKit Bugzilla: 256573
CVE-2023-38595: an anonymous researcher, Jiming Wang, and Jikai Ren
WebKit Bugzilla: 257387
CVE-2023-38600: Anonymous working with Trend Micro Zero Day Initiative
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 258058
CVE-2023-38611: Francisco Alonso (@revskills)
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 257684
CVE-2023-42866: Francisco Alonso (@revskills) and Junsung Lee
Entry added December 21, 2023
WebKit Process Model
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 258100
CVE-2023-38597: 이준성(Junsung Lee) of Cross Republic
WebKit Web Inspector
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may disclose sensitive information
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 256932
CVE-2023-38133: YeongHyeon Choi (@hyeon101010)
Additional recognition
WebKit
We would like to acknowledge Narendra Bhati (twitter.com/imnarendrabhati) of Suma Soft Pvt. Ltd, Pune - India for their assistance.
Entry added July 27, 2023
WebRTC
We would like to acknowledge an anonymous researcher for their assistance.