CVE-2026-78552

Validation Bypass in Okta Access Gateway Custom Directives

Published Sep 8, 2026 CVSS 3.1 · 6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

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

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Okta
Okta access Gateway
Vendors & Products Okta
Okta access Gateway
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Okta
Published
Updated
Sep 10, 2026, 5:49 PM
Reserved
Aug 24, 2026, 7:22 PM
Status
Analyzed
Published
Sep 8, 2026, 8:18 PM
Modified
Sep 23, 2026, 5:51 PM