Improper Neutralization of Equivalent Special Elements Affecting github.com/nginx/nginx-gateway-fabric/v2/apis package, versions >=2.5.0 <2.6.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Jun 2026
- disclosed17 Jun 2026
- creditUnknown
Introduced: 17 Jun 2026
CVE-2026-11311 (opens in a new tab)How to fix?
Upgrade github.com/nginx/nginx-gateway-fabric/v2/apis to version 2.6.4 or higher.
Overview
Affected versions of this package are vulnerable to Improper Neutralization of Equivalent Special Elements via the NGINX configuration generator component. An attacker can inject arbitrary NGINX configuration directives by supplying crafted values to the serverTokens or extraAuthArgs fields in the relevant Custom Resource Definitions. This is only exploitable if the attacker is authenticated and has permission to create or modify these Custom Resource Definitions.