CVE-2026-16543
Kong Operator cluster-wide ingress configuration DoS via embedded KIC CA-certificate ID collision
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 CWE-400 |
| Published | Jul 29, 2026 |
Stay Ahead of the Next One
Get instant alerts for
Be the first to know when new unknown vulnerabilities are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup