CVE-2026-28861

MEDIUM 4.3

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	apple
Product	safari
Ecosystems	iOS macOS
Industries	Technology
Published	Mar 25, 2026
Last Updated	Jul 15, 2026

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Affected Versions

Apple / Safari

0 < 26.4

Apple / iOS and iPadOS

0 < 18.7.7 0 < 26.4

Apple / macOS

0 < 26.4

Apple / visionOS

0 < 26.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

support.apple.com: https://support.apple.com/en-us/126792 support.apple.com: https://support.apple.com/en-us/126793 support.apple.com: https://support.apple.com/en-us/126794 support.apple.com: https://support.apple.com/en-us/126799 support.apple.com: https://support.apple.com/en-us/126800 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-28861 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2453007 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28861.json