Agents and Access Gateway
CVE-2026-78552: Validation Bypass in Okta Access Gateway Custom Directives
The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configuration field.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 6
EPSS0.27%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Okta Access Gateway 0 | 2026.9.1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 12 Oct 2026.