Week 32: August 8–14, 2026

Overview

Metric Value
New CVEs 3
Critical 0
High 2
Medium 1

CVE-2026-64728

Bugzilla: 317480
Component: WebKit
Class: Sandbox Escape
Severity: High
Commit: c3d4e5f6...

Sandbox attribute bypass via navigation of sandboxed iframe to javascript: URI. The navigation policy check did not re-evaluate sandbox flags after a redirect chain.


CVE-2026-64720

Bugzilla: 317300
Component: WebCore
Class: Race Condition
Severity: High
Commit: d4e5f6a7...

Race condition between document loader cancellation and resource callback dispatch. Raw DocumentLoader* pointer held by callback becomes dangling after loader destruction.