Medium · published September 2, 2026
Uncaught Exception (CWE-248) in Kibana can lead to a denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only the low-privileged feature access required to use the Observability AI Assistant can submit a specially crafted request that produces an unhandled error condition, terminating the Kibana process and denying service to all users and spaces on that instance until it is restarted.
| Product | Versions | Fixed in |
|---|---|---|
| elastic/kibana | ≥ 9.1.7, < 9.4.5 | 9.4.5 |
| elastic/kibana | all versions | — |