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CVE-2026-42400

6.5 MEDIUM

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130)

Published: 2026-05-28 · Last updated: 2026-06-01

Severity and scoring

CVSS
6.5 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-400

Affected products

VendorProduct
elastickibana

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.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-49095 — Improper Input Validation (CWE-20) in the Kibana Fleet agent policy management feature can lead to privilege escalation (6.5 MEDIUM)
  • CVE-2026-49094 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)
  • CVE-2026-49093 — Server-Side Request Forgery (CWE-918) in Kibana can allow an authenticated user with connector management privileges to bypass the operat... (6.3 MEDIUM)
  • CVE-2026-42399 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)
  • CVE-2026-42398 — Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-co... (7.7 HIGH)

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