About the security content of Safari 18

This document describes the security content of Safari 18.

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.

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Safari 18

Released September 16, 2024

WebKit

Available for: macOS Ventura and macOS Sonoma

Impact: Visiting a malicious website may lead to address bar spoofing

Description: The issue was addressed with improved UI.

WebKit Bugzilla: 279451

CVE-2024-40866: Hafiizh and YoKo Kho (@yokoacc) of HakTrak

WebKit

Available for: macOS Ventura and macOS Sonoma

Impact: A malicious website may exfiltrate data cross-origin

Description: A cross-origin issue existed with "iframe" elements. This was addressed with improved tracking of security origins.

WebKit Bugzilla: 279452

CVE-2024-44187: Narendra Bhati, Manager of Cyber Security at Suma Soft Pvt. Ltd, Pune (India)

WebKit

Available for: macOS Ventura and macOS Sonoma

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

Description: This issue was addressed through improved state management.

WebKit Bugzilla: 268724

CVE-2024-40857: Ron Masas

Additional recognition

Safari

We would like to acknowledge Hafiizh and YoKo Kho (@yokoacc) of HakTrak for their assistance.

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