VULNERABILITY INTELLIGENCE

CVE-2026-42400

CVSS score6.5 MEDIUM
EPSS probability0.33%
CISA KEVNot currently listed
Published2026-05-28
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • security@elastic.co: CWE-400

Primary references