CVE-2026-5281 is a CVSS 8.8 use-after-free in Google Dawn, the WebGPU graphics backend shared across all Chromium-based browsers, enabling remote code execution via a crafted webpage following renderer compromise. CISA KEV confirms active exploitation with a federal remediation deadline of 2026-04-15; the attack surface extends to Chrome, Edge, Opera, and any Electron-based application embedding an affected Chromium version. Apply vendor-issued browser patches immediately across all endpoints and initiate an emergency Electron application dependency review.