Apple recently released Safari 26.5, the latest version of its macOS web browser. Now it has published a full list of security fixes included in the update. The rather long list includes a fix for a WebKit vulnerability that could let maliciously crafted web content disclose sensitive user information.
Here’s the full security content of Safari 26.5:
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
Description: A validation issue was addressed with improved logic.
WebKit Bugzilla: 308906
CVE-2026-43660: Cantina
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may prevent Content Security Policy from being enforced
Description: The issue was addressed with improved input validation.
WebKit Bugzilla: 308675
CVE-2026-28907: Cantina
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may disclose sensitive user information
Description: This issue was addressed with improved access restrictions.
WebKit Bugzilla: 309698
CVE-2026-28962: Luke Francis, Vaagn Vardanian, kwak kiyong / kakaogames, Vitaly Simonovich, Adel Bouachraoui, greenbynox
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 307669
CVE-2026-43658: Do Young Park
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 308545
CVE-2026-28905: Yuhao Hu, Yuanming Lai, Chenggang Wu, and Zhe Wang
WebKit Bugzilla: 308707
CVE-2026-28847: DARKNAVY (@DarkNavyOrg), Anonymous working with TrendAI Zero Day Initiative, Daniel Rhea
WebKit Bugzilla: 309601
CVE-2026-28904: Luka Rački
WebKit Bugzilla: 310880
CVE-2026-28955: wac and Kookhwan Lee working with TrendAI Zero Day Initiative
WebKit Bugzilla: 310303
CVE-2026-28903: Mateusz Krzywicki (iVerify.io)
WebKit Bugzilla: 309628
CVE-2026-28953: Maher Azzouzi
WebKit Bugzilla: 309861
CVE-2026-28902: Tristan Madani (@TristanInSec) from Talence Security, Nathaniel Oh (@calysteon)
WebKit Bugzilla: 310207
CVE-2026-28901: Aisle offensive security research team (Joshua Rogers, Luigino Camastra, Igor Morgenstern, and Guido Vranken), Maher Azzouzi, Ngan Nguyen of Calif.io
WebKit Bugzilla: 311631
CVE-2026-28913: an anonymous researcher
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: A use-after-free issue was addressed with improved memory management.
WebKit Bugzilla: 313939
CVE-2026-28883: kwak kiyong / kakaogames
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: An app may be able to access sensitive user data
Description: This issue was addressed with improved data protection.
WebKit Bugzilla: 311228
CVE-2026-28958: Cantina
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: The issue was addressed with improved input validation.
WebKit Bugzilla: 310527
CVE-2026-28917: Vitaly Simonovich
WebKit
Available for: macOS Sonoma and macOS Sequoia
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.
WebKit Bugzilla: 310234
CVE-2026-28947: dr3dd
WebKit Bugzilla: 310544
CVE-2026-28946: Gia Bui (@yabeow) from Calif.io, dr3dd, w0wbox
WebKit Bugzilla: 312180
CVE-2026-28942: Milad Nasr and Nicholas Carlini with Claude, Anthropic
WebKit
Available for: macOS Sonoma and macOS Sequoia
Impact: A malicious iframe may use another website’s download settings
Description: The issue was addressed with improved UI handling.
CVE-2026-28971: Khiem Tran
WebKit Bugzilla: 311288
WebRTC
Available for: macOS Sonoma and macOS Sequoia
Impact: Processing maliciously crafted web content may lead to an unexpected process crash
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 311131
CVE-2026-28944: Kenneth Hsu of Palo Alto Networks, Jérôme DJOUDER, dr3dd
To learn more about Apple’s security releases, visit this link.