CVE-2026-78560

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.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://trust.okta.com/security-advisories/improper-authentication-validation-in-okta-access-gateway-pass-through-authentication-source-cve-2026-78560	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*

History

23 Sep 2026, 18:00

Type	Values Removed	Values Added
First Time		Okta access Gateway Okta
CPE		cpe:2.3:a:okta:access_gateway::::::::
References	~~() https://trust.okta.com/security-advisories/improper-authentication-validation-in-okta-access-gateway-pass-through-authentication-source-cve-2026-78560 -~~	() https://trust.okta.com/security-advisories/improper-authentication-validation-in-okta-access-gateway-pass-through-authentication-source-cve-2026-78560 - Vendor Advisory

Information

Published : 2026-09-08 20:18

Updated : 2026-09-23 18:00

NVD link : CVE-2026-78560

Mitre link : CVE-2026-78560

CVE.ORG link : CVE-2026-78560

JSON object : View

Products Affected

okta

access_gateway

CWE

CWE-287

Improper Authentication

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