CVE-2026-28861

Summary

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.

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/126793Advisory
• https://support.apple.com/en-us/126794Advisory
• https://support.apple.com/en-us/126799Advisory
• https://support.apple.com/en-us/126800Advisory