# WebKit Gigacage iOS 26.2 ### **Advisory ID:** [CVE Pending] --- **Webkit Bug:** #304711 **Apple Tracking ID:** OE01004904221848 ## Overview This repository documents an active zero-day integer overflow vulnerability in WebKit’s Gigacage implementation, affecting iOS 26.2 and related platforms. The flaw enables out-of-bounds memory access and process termination, with elevated risk of remote code execution if Gigacage protections are bypassed. ## Contents - **VULNERABILITY_REPORT.md:** Full technical advisory, including proof-of-concept code examples and analysis - **crash_logs/**: Crash logs from affected iOS 26.2 devices demonstrating reproducibility ## Impact - **Affected devices:** iOS 26.2, potentially macOS Sequoia 15.x and WKWebView-based browsers - **Current risk:** Persistent Denial of Service (DoS) - **Potential risk:** Remote Code Execution (RCE) - **Confirmed:** 100% reproducibility on iOS 26.2 ## Purpose Accelerate vendor triage and support mitigations. Intended for use by security engineers, defenders, and Apple’s security response teams. ### Disclosure See`VULNERABILITY_REPORT.md` for PoC details, crash evidence, and remediation recommendations. --- *For authorized research and mitigation only. Unauthorized exploitation is prohibited.*