Emerging Threat: (CVE-2026-26035) FortiWeb Admin Authentication Bypass via RADIUS Admin Groups
CVE-2026-26035 is an improper authentication vulnerability (CWE-287) in Fortinet FortiWeb, disclosed by Fortinet on August 12, 2026 in advisory FG-IR-26-158 under the title “Broken access control in the RADIUS type admin group.” The flaw sits in FortiWeb’s remote RADIUS administrator authentication path, where the appliance fails to correctly validate an administrative login before granting access.