CVE-2026-11311

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Source
https://cve.org/CVERecord?id=CVE-2026-11311
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-11311.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-11311
Aliases
Downstream
Published
2026-06-17T15:16:42.617Z
Modified
2026-07-08T07:32:23.573847120Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

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 NginxProxy Custom Resource Definition serverTokens field and the AuthenticationFilter Custom Resource Definition extraAuthArgs field are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions 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.

References

Affected packages

Git / github.com/nginx/nginx-gateway-fabric

Affected ranges

Type
GIT
Repo
https://github.com/nginx/nginx-gateway-fabric
Events
Introduced
dd157d716f56054e0bbebcd9a140080628600ffb
Fixed
66691213cd771fe56b124786ea6701c7fb8e467a
Database specific 
{
    "cpe": "cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.5.0"
        },
        {
            "fixed": "2.6.4"
        }
    ],
    "source": "CPE_RANGE"
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-11311.json"