CVE-2026-20643
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I. Basic Information for CVE-2026-20643
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apple多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apple iOS等都是美国苹果（Apple）公司的产品。Apple iOS是一套为移动设备所开发的操作系统。Apple macOS是一套专为Mac计算机所开发的专用操作系统。Apple iPadOS是一套用于iPad平板电脑的操作系统。 Apple多款产品存在安全漏洞，该漏洞源于Navigation API存在跨源问题，可能导致处理恶意Web内容时绕过同源策略。以下产品及版本受到影响：Apple iPadOS 26.3.1之前版本、Apple iOS 26.3.1之前版本和Apple macOS 26.
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-20643
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IV. Related Vulnerabilities
V. Comments for CVE-2026-20643
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