What is CVE-2026-12457?

CVE-2026-12457 is a security advisory published by Microsoft Security Response Center (MSRC). Chromium: CVE-2026-12457 Insufficient data validation in Extensions

Which CVE IDs does CVE-2026-12457 cover?

CVE-2026-12457 covers the following CVE IDs: CVE-2026-12457. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-12457

Chromium: CVE-2026-12457 Insufficient data validation in Extensions

Vendor

Microsoft Security Response Center (MSRC)

Published

June 26, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-12457 →

🔗 CVE IDs covered (1)

📋 Description