Apple Fixes WebKit Vulnerability Enabling Same-Origin Policy Bypass
Summary
Apple patched CVE-2026-20643, a WebKit vulnerability allowing same-origin policy bypass through malicious web content. Affects iOS, iPadOS, and macOS. Apple also sending alerts for older iOS versions due to active web-based exploits.
Threat Analysis
**Vulnerability ID:** CVE-2026-20643 **CVSS Score:** 7.5 (HIGH)
**Description:** Apple patched CVE-2026-20643, a WebKit vulnerability allowing same-origin policy bypass through malicious web content. Affects iOS, iPadOS, and macOS. Apple also sending alerts for older iOS versions due to active web-based exploits.
**Recent Coverage:** - [Apple Fixes WebKit Vulnerability Enabling Same-Origin Policy Bypass](https://thehackernews.com/2026/03/apple-fixes-webkit-vulnerability.html)
**Recommended Actions:** - Review vendor security advisories - Plan patch deployment according to risk assessment - Implement compensating controls where applicable