🟠 High | Source: Microsoft Security Response Center
A vulnerability in the Blink rendering engine’s InterestGroups component has been identified as an out-of-bounds read flaw (CVE-2026-13033), originally reported via Google Chrome. Microsoft Edge, which is built on the Chromium codebase, is affected by the same issue and has ingested the upstream fix. Out-of-bounds read vulnerabilities can allow attackers to leak sensitive memory contents or potentially facilitate further exploitation.
Security Architect’s Take: Ensure Microsoft Edge deployments across managed endpoints and virtual desktop environments (e.g. Azure Virtual Desktop) are updated to the latest Chromium-based build. Validate that your organisation’s browser patch cadence covers Edge as part of standard endpoint management, particularly for environments where browser-based access to cloud consoles is common.
Original advisory: Chromium: CVE-2026-13033 Out of bounds read in Blink>InterestGroups