CVE-2026-78552 Validation Bypass in Okta Access Gateway Custom Directives
Attackers can inject Lua directives into custom configuration fields to bypass restrictions and execute arbitrary code on the Okta Access Gateway.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78552?
CVE-2026-78552 is a medium-severity code injection vulnerability in Okta Access Gateway, published on 8 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-693
Which versions are affected by CVE-2026-78552?
It affects 1 product.
Products include Okta Access Gateway.
How do I fix CVE-2026-78552?
No fix has been published for CVE-2026-78552 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-78552 being exploited?
There is no known exploitation of CVE-2026-78552 in the wild and no public exploit code.
Other vulnerabilities in Okta Access Gateway
- CVE-2026-78626 Improper Input Sanitization in Okta Access Gateway Protected Rules
- CVE-2026-78623 Improper Handling of SAML Assertion Attributes in Okta Access Gateway Advanced Mode Datastores
- CVE-2026-78579 Improper Input Sanitization in Okta Access Gateway LDAP Datastore Filter Interpolation
- CVE-2026-78625 Insufficient Validation of Dashboard Application Labels in Okta Access Gateway Dashboard Site Configuration
- CVE-2026-78630 Improper Input Neutralization in Okta Access Gateway SNMP Configuration Processing
Sources
Also known as GHSA-5hj5-f578-54jw.