medium6.5
CVE-2026-42400
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130).
Impact
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Elastic | Kibana | from 8.0.0 before 8.19.16 from 9.0.0 before 9.3.5 from 9.4.0 before 9.4.2 |