Logic Issue in Safari and Apple Products Leading to Improper Origin Access
CVE-2026-28861

4.3MEDIUM

Key Information:

Vendor

Apple
Status
Safari
iOS And iPad OS
Mac OS
Visionos
Vendor
CVE Published:
25 March 2026

What is CVE-2026-28861?

A logic issue in Safari and various Apple products has been identified, impacting state management and allowing malicious websites to potentially access script message handlers that are intended for different origins. This vulnerability highlights the necessity of robust security measures, as it could enable unauthorized actions or data breaches through deceptive websites. Apple has addressed this issue in the latest updates across multiple platforms, reinforcing their commitment to user security.

Affected Version(s)

iOS and iPadOS 0 < 18.7.7

iOS and iPadOS 0 < 26.4

macOS 0 < 26.4

References

https://support.apple.com/en-us/126792
https://support.apple.com/en-us/126793
https://support.apple.com/en-us/126794

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.