Authentication Source Verification Issue in Okta Access Gateway

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-115546
StatePUBLISHED
AssignerOkta
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 04:18:15 UTC
Updated2026-10-23 04:18:15 UTC
DescriptionOkta 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.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-287 | CWE-639 | CWE-639 Authorization Bypass Through User-Controlled Key | CWE-287 Improper Authentication

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Okta Okta Access Gateway affected 2026.10.2 custom Not specified

References

ReferenceSourceLinkTags
trust.okta.com/security-advisories/authentication-source-verification-issue-... [email protected] trust.okta.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

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

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