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Apple Security Releases149039

Safari 27

Severity not listed 8 CVEs Published Sep 14, 2026 at 12:00 AM UTC

Summary

No separate summary was provided in the collected bulletin.

View 8 component changes
Safari

Available for: macOS Sequoia and macOS Tahoe

Impact: A malicious website may be able to determine what apps a user has installed

Description: This issue was addressed through improved state management.

CVE-2026-84518: Bálint Magyar (balintmagyar.com)

Safe Browsing

Available for: macOS Sequoia and macOS Tahoe

Impact: An app may be able to access sensitive user data

Description: This issue was addressed with additional entitlement checks.

CVE-2026-86897: Stuart Wallace

WebKit

Available for: macOS Sequoia and macOS Tahoe

Impact: Processing maliciously crafted web content may lead to an unexpected process termination

Description: A logic issue was addressed with improved state management.

CVE-2026-84635: Souta Sugiyama

WebKit

Available for: macOS Sequoia and macOS Tahoe

Impact: Processing maliciously crafted web content may disclose sensitive user information

Description: A permissions issue was addressed by removing the vulnerable code.

CVE-2026-64753: Viggo Lekdorf

WebKit

Available for: macOS Sequoia and macOS Tahoe

Impact: Opening a maliciously crafted webarchive file may lead to universal cross-site scripting

Description: A logic issue was addressed with improved state management.

CVE-2026-86898: Tomi Garcia (archyxsec)

WebKit

Available for: macOS Sequoia and macOS Tahoe

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: A type confusion issue was addressed with improved state management.

CVE-2026-86922: Nathaniel Oh (@calysteon), Kwak Kiyong / kakaogames

WebKit

Available for: macOS Sequoia and macOS Tahoe

Impact: Processing maliciously crafted web content may lead to unexpected behavior

Description: A logic issue was addressed with improved state management.

CVE-2026-86872: Junhyuk Im of S2W Inc, Seungyun Lee of S2W Inc

WebKit Canvas

Available for: macOS Sequoia and macOS Tahoe

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: A use-after-free issue was addressed with improved memory management.

CVE-2026-64718: Niels Hofmans, OGINOME Tomohito, an anonymous researcher

Products covered

  • macOS Sequoia and macOS Tahoe

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 8

Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added CVEs: CVE-2026-86872, CVE-2026-86922.

Updates

  1. Published by Apple Security Releases

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.