Improper Validation of Specified Type of Input Affecting k8s.io/ingress-nginx/internal/ingress/controller/template package, versions <1.12.5>=1.13.0 <1.13.1
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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Test your applications- Snyk IDSNYK-GOLANG-K8SIOINGRESSNGINXINTERNALINGRESSCONTROLLERTEMPLATE-15237765
- published6 Feb 2026
- disclosed6 Feb 2026
- creditJan-Otto Kröpke
Introduced: 6 Feb 2026
CVE-2025-15566 Â (opens in a new tab)How to fix?
Upgrade k8s.io/ingress-nginx/internal/ingress/controller/template to version 1.12.5, 1.13.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input in the auth-proxy-set-headers annotation, which allows injection of configuration into nginx. An attacker can execute arbitrary code and access sensitive information by supplying crafted input to this annotation.