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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2026-0149
Security Bypass Vulnerability in Apple Products

Original Issue Date:March 19, 2026

Severity Rating: HIGH

Software Affected

  • Apple iOS and iPadOS versions prior to 26.3.1
  • Apple macOS versions prior to 26.3.1
  • Apple macOS versions prior to 26.3.2

Overview

A vulnerability has been reported in Apple products which could be exploited by an attacker to bypass Same Origin Policy on the targeted system.

Target Audience:
All end-user organizations and individuals using Apple products.

Risk Assessment:
High risk of unauthorized cross-origin data access.

Impact Assessment:
Potential for access to sensitive data.

Description

iOS, iPadOS, and macOS are operating systems developed by Apple Inc. to run iPhones, iPads, and Mac computers respectively.

This vulnerability exists in the Webkit component of Apple products due to improper validation in its Navigation API. A remote attacker could exploit this vulnerability by enticing the target user to execute a specially crafted webpage resulting in bypass of same origin policy.

Successful exploitation of this vulnerability could lead to unauthorized cross-origin data access and potential disclosure of sensitive information.

Solution

Apply appropriate security updates as mentioned in the Apple Security Updates
https://support.apple.com/en-us/126604

Vendor Information

Apple
https://support.apple.com/en-us/126604

References

 
https://support.apple.com/en-us/126604

CVE Name
CVE-2026-20643

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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