CVE-2026-78560
Improper Authentication Validation in Okta Access Gateway Pass-Through Authentication Source
CVSS Score
4.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-287 |
| Vendor | okta |
| Product | okta access gateway |
| Published | Sep 8, 2026 |
| Last Updated | Sep 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Okta / Okta Access Gateway
0 < 2026.9.1