CVE-2026-28859

Summary

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.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected products we track (3)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Additional information

• NVD record
• https://support.apple.com/en-us/126792Advisory
• https://support.apple.com/en-us/126794Advisory
• https://support.apple.com/en-us/126797Advisory
• https://support.apple.com/en-us/126798Advisory
• https://support.apple.com/en-us/126799Advisory
• https://support.apple.com/en-us/126800Advisory