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CVE-2026-20643

Apple / Safari PUBLISHED

Description (CNA)

A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, 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. Processing maliciously crafted web content may bypass Same Origin Policy.

Affected (CNA)

Vendor / productVersions
Apple / Safariaffected 0 before 26.4
Apple / iOS and iPadOSaffected 0 before 18.7.7; affected 0 before 26.3.1 (a); affected 0 before 26.4
Apple / macOSaffected 0 before 26.3.1 (a); affected 0 before 26.3.2 (a); affected 0 before 26.4
Apple / visionOSaffected 0 before 26.4

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.