PatchTheCVECVE-2026-78552: The Okta Access Gateway does not apply its Lua directive restriction to the application-level custom configura
CVE-2026-78552 is a medium-severity flaw (CVSS 6.0) affecting access gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.0 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 68%) |
| CISA exploited list | No |
| Weakness | CWE-693 |
| Published | 2026-09-08 |
| Last modified | 2026-09-23 |
Last updated 2026-09-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-78552?
access gateway: upgrade to 2026.9.1. Exact commands for each OS are on this page.
Is CVE-2026-78552 being exploited?
CVE-2026-78552 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-78552 affect?
CVE-2026-78552 affects access gateway. Severity is medium (CVSS 6.0). 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
How urgent is CVE-2026-78552?
Priority 29/100. No elevated risk signals yet.
Software pages
nginx vulnerabilities · Okta vulnerabilities
Related CVEs
- CVE-2026-78545 MEDIUM 6.6 UPGRADE The Okta Access Gateway does not sanitize the application label field before including it in the generated ngi
- CVE-2026-78550 MEDIUM 6.6 UPGRADE The Okta Access Gateway management console passes user-supplied input to eval() without sanitization during an
- CVE-2026-78579 MEDIUM 6.8 UPGRADE The Okta Access Gateway does not sanitize SAML assertion attribute values before interpolating them into LDAP
- CVE-2026-78560 MEDIUM 4.8 UPGRADE The Okta Access Gateway includes an optional pass-through authentication source that accepts user identity fro
- CVE-2026-78620 MEDIUM 5.9 UPGRADE The Okta Access Gateway Kerberos configuration handler does not validate file paths specified in event payload