CVE-2026-78560: Okta Access Gateway

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

The Okta Access Gateway includes an optional pass-through authentication source that accepts user identity from a client-supplied HTTP header without cryptographic validation. In architectures where this optional source is enabled without an upstream reverse proxy or firewall configured to sanitize and enforce client headers, an unauthenticated user can supply an arbitrary identity value to initiate a session.

Affected products

• Okta Access Gateway: before 2026.9.1 (fixed in 2026.9.1)

Published 2026-09-08. Last modified 2026-09-23.