CVE-2026-42397

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted request to affected Entity Analytics endpoints containing an oversized input value that causes excessive resource consumption, which may render Kibana unavailable.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/kibana-9-3-7-9-4-4-security-update-esa-2026-55/388554/1	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:kibana::::::::
	cpe:2.3:a:elastic:kibana::::::::

History

No history.

Information

Published : 2026-07-21 20:17

Updated : 2026-08-06 13:10

NVD link : CVE-2026-42397

Mitre link : CVE-2026-42397

CVE.ORG link : CVE-2026-42397

JSON object : View

Products Affected

elastic

kibana

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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