CVE-2026-20665
Medium
Description
This issue was addressed through 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, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Apple Safari
PublishedMar 25, 2026
First seenMar 25, 2026
Weakness typeCWE-693CWE-693
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 tvos26.4 or later
- apple visionos26.4 or later
- apple watchos26.4 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 tvos | v < 26.4 | 26.4 |
| apple visionos | v < 26.4 | 26.4 |
| apple watchos | v < 26.4 | 26.4 |
Check your version
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