Apple WebKit CSP Bypass before 26.5 (iOS 18.7.9, macOS 26.5)
CVE-2026-43660 Published on May 11, 2026

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.

NVD

Products Associated with CVE-2026-43660

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Apple iOS

Apple iPadOS

Apple macOS

Apple tvOS

Apple watchOS

Apple visionOS

Apple Ios And Ipados

Affected Versions

Apple iOS and iPadOS:

Before 18.7.9 is affected.
Before 26.5 is affected.

Apple macOS:

Before 26.5 is affected.

Apple tvOS:

Before 26.5 is affected.

Apple visionOS:

Before 26.5 is affected.

Apple watchOS:

Before 26.5 is affected.