SB2026031773 - Security restrictions bypass in Apple iOS and iPadOS
Published: March 17, 2026
Security Bulletin ID
SB2026031773
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Protection mechanism failure (CVE-ID: CVE-2026-20643)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures within the Navigation API in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and bypass Same Origin Policy.
Remediation
Install update from vendor's website.