Description
The issue was addressed with improved checks. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious website may exfiltrate data cross-origin.
Affected products
apple: safari; apple: ipados; apple: iphone os; apple: tvos; apple: visionos; apple: watchos
References6
- support.apple.com/en-us/125632 Release NotesVendor Advisory
- support.apple.com/en-us/125637 Release NotesVendor Advisory
- support.apple.com/en-us/125638 Release NotesVendor Advisory
- support.apple.com/en-us/125639 Release NotesVendor Advisory
- support.apple.com/en-us/125640 Release NotesVendor Advisory
- support.apple.com/en-us/125634
Metrics
- CVSS 3.1
-
8.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 43 · as of 10 November 2026
- CWE
- CWE-942
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.