CVE-2026-28861
Medium
Description
A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Apple Safari
PublishedMar 25, 2026
First seenMar 25, 2026
Weakness typeCWE-79Cross-site scripting (XSS)CWE-346CWE-346
How to fix
Update
- apple safari26.4 or later
- apple ipados18.7.7, 26.4 or later
- apple iphone_os18.7.7, 26.4 or later
- apple macos26.4 or later
- apple visionos26.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple safari | v < 26.4 | 26.4 |
| apple ipados | v < 18.7.7, 26.0 ≤ v < 26.4 | 18.7.7, 26.4 |
| apple iphone_os | v < 18.7.7, 26.0 ≤ v < 26.4 | 18.7.7, 26.4 |
| apple macos | v < 26.4 | 26.4 |
| apple visionos | v < 26.4 | 26.4 |
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