What is CVE-2026-8563?

CVE-2026-8563 is a security advisory published by Microsoft Security Response Center (MSRC). Chromium: CVE-2026-8563 Insufficient policy enforcement in IFrame Sandbox

Which CVE IDs does CVE-2026-8563 cover?

CVE-2026-8563 covers the following CVE IDs: CVE-2026-8563. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-8563

Chromium: CVE-2026-8563 Insufficient policy enforcement in IFrame Sandbox

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-8563 →

📋 Description

<p>This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see <a href="https://chromereleases.googleblog.com/2025">Google Chrome Releases</a> for more information</p>