Skip to content
CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-16543

Kong Operator cluster-wide ingress configuration DoS via embedded KIC CA-certificate ID collision

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Kong

Description

Kong Operator's embedded Kong Kubernetes Ingress Controller (KIC) allows a user with namespace-scoped Secret creation privileges to cause a cluster-wide ingress configuration denial of service. The embedded 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Kong/kong-operator

Default version status: unaffected

  • 2.2.0 to < 2.2.3affected
  • 2.1.0 to < 2.1.9affected
  • 0 to < 2.0.11affected

References