CVE-2026-66362
Description: When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the Authentication Filter Custom Resource Definition clientID or cookieName fields, or in the clientSecret field of a Secret referenced by an Authentication Filter, are rendered directly into NGINX configuration templates without sanitization or escaping. Impact: An authenticated attacker with permission to create or modify these resources may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure.
- Score
- CVSS 4.0 8.6 High
- Status
- Awaiting Analysis - f5sirt@f5.com
- Published
- 2026-09-02
- Last modified
- 2026-09-03
- Weaknesses
- CWE-76
Affected products
References
- https://my.f5.com/manage/s/article/K000162600
