A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.

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Fixes

Solution

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Workaround

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History

Wed, 13 May 2026 23:00:00 +0000

Type Values Removed Values Added
Title Apple Web Rendering Validation Flaw Bypasses Content Security Policy

Wed, 13 May 2026 20:30:00 +0000

Type Values Removed Values Added
Description A validation issue was addressed with improved logic. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced. A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
References

Tue, 12 May 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os

Tue, 12 May 2026 16:30:00 +0000

Type Values Removed Values Added
Title Content Security Policy Bypass via Malformed Web Content in Apple Operating Systems
Weaknesses CWE-20
CWE-79

Tue, 12 May 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 23:00:00 +0000

Type Values Removed Values Added
Title Content Security Policy Bypass via Malformed Web Content in Apple Operating Systems
Weaknesses CWE-20
CWE-79

Mon, 11 May 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos
Apple watchos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos
Apple watchos

Mon, 11 May 2026 20:45:00 +0000

Type Values Removed Values Added
Description A validation issue was addressed with improved logic. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-05-13T19:58:49.368Z

Reserved: 2026-05-01T22:46:21.639Z

Link: CVE-2026-43660

cve-icon Vulnrichment

Updated: 2026-05-12T13:18:39.640Z

cve-icon NVD

Status : Modified

Published: 2026-05-11T21:19:01.720

Modified: 2026-05-13T21:16:47.520

Link: CVE-2026-43660

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T22:45:06Z

Weaknesses