CVE-2026-20643

5.4 MEDIUM
Published: March 17, 2026 Modified: March 25, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://support.apple.com/en-us/126604
Source: product-security@apple.com
Release Notes Vendor Advisory
https://support.apple.com/en-us/126792
Source: product-security@apple.com
https://support.apple.com/en-us/126793
Source: product-security@apple.com
https://support.apple.com/en-us/126794
Source: product-security@apple.com
https://support.apple.com/en-us/126799
Source: product-security@apple.com
https://support.apple.com/en-us/126800
Source: product-security@apple.com
http://seclists.org/fulldisclosure/2026/Mar/10
Source: af854a3a-2127-422b-91ae-364da2661108

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.4 / 10.0
EPSS (Exploit Probability)
0.0%
10th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

apple