Okta Access Gateway (OAG) does not validate the selected authentication source during sign-on. An authenticated user with an active session can modify the authentication source parameter, which may generate a SAML assertion granting access to the Admin Console.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

Upgrade the Okta Access Gateway appliance to version 2026.10.2 or greater.


Workaround

No workaround given by the vendor.

History

Fri, 23 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 23 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
First Time appeared Okta
Okta access Gateway
Vendors & Products Okta
Okta access Gateway

Fri, 23 Oct 2026 03:30:00 +0000

Type Values Removed Values Added
Description Okta Access Gateway (OAG) does not validate the selected authentication source during sign-on. An authenticated user with an active session can modify the authentication source parameter, which may generate a SAML assertion granting access to the Admin Console.
Title Authentication Source Verification Issue in Okta Access Gateway
Weaknesses CWE-287
CWE-639
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Okta

Published:

Updated: 2026-10-23T10:56:08.332Z

Reserved: 2026-10-22T20:55:19.371Z

Link: CVE-2026-115546

cve-icon Vulnrichment

Updated: 2026-10-23T10:52:39.197Z

cve-icon NVD

Status : Received

Published: 2026-10-23T04:18:15.047

Modified: 2026-10-23T12:18:12.390

Link: CVE-2026-115546

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T06:00:12Z

Weaknesses