protection-mechanism-failure
CVE-2026-43660
WebKit
CVSS Details
CVSS Score
7.5 HIGH
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-693 Protection Mechanism Failure
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. This vulnerability had been resident in the WebKit codebase for thirteen years before being discovered by Cantina's autonomous AppSec agent, Apex.
Disclosure Date
Public Disclosure
May 12, 2026