The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configuration field. The field is interpolated directly into the nginx server block without inspection, resulting in execution of injected directives.

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Fixes

Solution

Upgrade the Okta Access Gateway appliance to version 2026.9.1 or greater.


Workaround

No workaround given by the vendor.

History

Sun, 13 Sep 2026 20:30:00 +0000

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

Thu, 10 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 08 Sep 2026 20:15:00 +0000

Type Values Removed Values Added
Description The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configuration field. The field is interpolated directly into the nginx server block without inspection, resulting in execution of injected directives.
Title Validation Bypass in Okta Access Gateway Custom Directives
Weaknesses CWE-693
References
Metrics cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Okta

Published:

Updated: 2026-09-10T17:49:58.586Z

Reserved: 2026-08-24T19:22:41.548Z

Link: CVE-2026-78552

cve-icon Vulnrichment

Updated: 2026-09-10T17:49:41.840Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-09-08T20:18:36.073

Modified: 2026-09-10T18:18:08.237

Link: CVE-2026-78552

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-13T20:07:13Z

Weaknesses