Improper Authentication Validation in Okta Access Gateway Pass-Through Authentication Source

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-78560
StatePUBLISHED
AssignerOkta
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-08 20:18:36 UTC
Updated2026-09-10 15:17:41 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.8 MEDIUM from [email protected]

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

EPSS: 0.002010000 probability, percentile 0.099870000 (date 2026-09-10)

Problem Types: CWE-287 | CWE-287 Improper Authentication

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Okta Okta Access Gateway affected 2026.9.1 semver Not specified

References

ReferenceSourceLinkTags
trust.okta.com/security-advisories/improper-authentication-validation-in-okt... [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 2026.9.1 or greater.

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