CVE-2026-28958
WebKit
CVSS Details
CVSS Score
5.5 MEDIUM
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Description
This issue was addressed with improved data protection. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, visionOS 26.5. An app may be able to access sensitive user data. This is a second, independent Content Security Policy bypass in WebKit discovered by Cantina's Apex agent.
Timeline
Discovered
April 2026
Vendor Notified
April 2026
Patch Released
May 11, 2026 (iOS 26.5)
Public Disclosure
May 11, 2026