CVE-2026-28859: Apple iPadOS

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A malicious website may be able to process restricted web content outside the sandbox.

Affected products

• Apple iPadOS: before 26.4 (fixed in 26.4)
• Apple iPhone OS: before 26.4 (fixed in 26.4)
• Apple macOS: before 26.4 (fixed in 26.4)
• Apple Safari: before 26.4 (fixed in 26.4)
• Apple tvOS: before 26.4 (fixed in 26.4)
• Apple visionOS: before 26.4 (fixed in 26.4)
• Apple watchOS: before 26.4 (fixed in 26.4)

Published 2026-03-25. Last modified 2026-07-15.