What’s Vulnerable › Vulnerabilities
CVE-2026-78552: Validation Bypass in Okta Access Gateway Custom Directives
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-08 · updated 2026-09-23
- Weakness: CWE-693
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.
Affected products
- Okta Access Gateway: before 2026.9.1 — fixed in 2026.9.1
How to fix
Upgrade to a fixed version: Okta Access Gateway 2026.9.1. Check the vendor advisory for mitigations.
References
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