improper-input-validation
CVE-2026-28907
WebKit
CVSS Details
CVSS Score
8.1 HIGH
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness
CWE-20 Improper Input Validation
Description
The issue was addressed with improved input validation. 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. This is a Content Security Policy bypass vulnerability in WebKit's policy enforcement layer.
Disclosure Date
Public Disclosure
May 11, 2026