# CVE-2026-78552: Validation Bypass in Okta Access Gateway Custom Directives

> CVE-2026-78552: Validation Bypass in Okta Access Gateway Custom Directives. CVSS 6.0 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-78552
Last updated: 2026-09-23T17:51:07Z

- Published: 2026-09-08 20:08 UTC · Updated: 2026-09-23 17:51 UTC · Assigner: Okta
- CVSS: 6.0 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L
- EPSS: 0.39%, 32th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: 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 vendors and products

- Okta: Okta Access Gateway

## Tracked companies

- [Okta](https://rewindex.com/company/okta.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-78552)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-78552)
- [https://trust.okta.com/security-advisories/validation-bypass-in-okta-access-gateway-custom-directives-cve-2026-78552](https://trust.okta.com/security-advisories/validation-bypass-in-okta-access-gateway-custom-directives-cve-2026-78552)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-78552 · Markdown: https://rewindex.com/cve/CVE-2026-78552.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-78552 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:47:11.553Z