SecurityWeek (9 September 2026) summarises Fortinet's Tuesday patch set of ten vulnerabilities. Critical CVE-2026-84390 (CVSS 9.6) is inclusion of sensitive information in source code on the FortiMonitorOnSight web portal — a remote unauthenticated attacker can bypass authentication via a forged or reused JWT. Critical CVE-2026-84388 (CVSS 9.1) is improper authentication in the Fortinet Privileged Access Agent Chrome extension — a remote unauthenticated attacker can proxy a victim's browser traffic if the user visits a malicious site.

Fortinet says full remediation needs FortiPAM 1.9.1 or 1.8.4 plus Chrome extension 8.0.1.123 or newer. Same batch includes high issues in FortiSandbox (CVE-2026-26084) and FortiOS/FortiProxy. Primary wire: SecurityWeek; confirm builds on FortiGuard PSIRT.