CVE-2026-57991: Microsoft Edge Chromium

High severity, CVSS 7.4. EPSS: 1% chance of exploitation in the next 30 days.

Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

Affected products

• Microsoft Edge Chromium: before 150.0.4078.48 (fixed in 150.0.4078.48)

Published 2026-07-03. Last modified 2026-07-07.