When NGINX Plus or NGINX Open Source 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 NginxProxy Custom Resource Definition (CRD) access log format setting are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these CRDs may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
| Vendor | Product | Versions |
|---|---|---|
| f5 | nginx gateway fabric | 2.3.0 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| nginx | nginx plus | cert_advisory | 90% |
| nginx | nginx | cert_advisory | 90% |
Updated severity to HIGH, CVSS score to 9.2, added new CWE IDs, and marked exploit as available.
Updated severity to CRITICAL, affected versions to include 2.6.3, and noted that no exploit exists.
Initial creation
