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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-42400

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

Description

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

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

Elastic Kibana

Default version status: unaffected

  • 9.4.0 to ≤ 9.4.1affected
  • 9.0.0 to ≤ 9.3.4affected
  • 8.0.0 to ≤ 8.19.15affected

References