CVE-2026-15228 — Kong Kubernetes Ingress Controller cluster-wide ingress configuration DoS via CA-certificate ID collision
Kong Kubernetes Ingress Controller (KIC) allows a user with namespace-scoped Secret creation privileges to cause a cluster-wide ingress configuration denial of service. KIC coll…
Published: 2026-07-29 · CVSS: 7.1 · CVSS 4.0
Kong Kubernetes Ingress Controller (KIC) allows a user with namespace-scoped Secret creation privileges to cause a cluster-wide ingress configuration denial of service. KIC collects CA-certificate Secrets across all watched namespaces using a label selector alone, without ingress-class or namespace restrictions. The CA-certificate primary key is derived from a user-supplied field in the Secret. Duplicate CA-certificate IDs cause Kong Gateway to reject the entire configuration document and halting all ingress changes cluster-wide.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7