Emerging Threat: CVE-2026-24858 - FortiCloud SSO Authentication Bypass
CVE-2026-24858 is an authentication bypass vulnerability affecting FortiCloud’s Single Sign-On (SSO) implementation. Under certain conditions, the flaw allows an unauthenticated attacker to bypass standard authentication checks and gain access to FortiCloud services without valid credentials. The root cause is tied to insufficient validation within the SSO authentication flow, where trust boundaries between identity assertions and session establishment are not enforced strictly enough.