CVE-2026-43821

Overview

Advisory: Apple Security Advisory

Impact:

Description: An app may be able to read files outside of its sandbox

Researchers: Brian Carpenter

Attribute	Value
CVE	CVE-2026-43821
Bugzilla	314867
Component	WebKit
Bug Class	SandboxEscape
Severity	medium
Commit	74d0c628ff2d82e9…
Advisory	Apple Advisory

Root Cause Analysis

An access issue was addressed with improved access restrictions.

Files Changed

Source Files

• Source/WebKit/NetworkProcess/NetworkResourceLoader.cpp