Quick answers
- Is CVE-2026-78552 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-78552 being exploited in the wild.
- How severe is CVE-2026-78552?
- Medium severity, with a CVSS score of 6, published 8 September 2026.
- Which products and versions are affected?
- Okta Access Gateway prior to 2026.9.1.
- Is there a fix for CVE-2026-78552?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-78552 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-78552?
- Check whether you run Okta Access Gateway at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a protection mechanism bypass (CWE-693) in the Okta Access Gateway's configuration handling. The appliance fails to apply Lua directive restrictions to the application-level custom configuration field, instead interpolating user-supplied input directly into the nginx server block without inspection. This allows an authenticated administrator with privileges to create or modify application configurations to inject malicious nginx directives. The attack requires authentication with administrative privileges and application configuration reload. The vulnerability is resolved in version 2026.9.1 and later.
Affected products
- Okta Access Gateway prior to 2026.9.1
Timeline
- 2026-09-08: disclosed