CVE-2026-63139 - Vulnerability Details - OpenCVE

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated low-privileged user can exploit an uncontrolled resource consumption vulnerability in Kibana's Canvas functionality by sending a specially crafted request, causing the Kibana server process to terminate and resulting in a denial of service for all users of the affected Kibana instance.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Elastic	Kibana

No data.

No data.

References

Link	Providers
https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-63/388560

History

Thu, 23 Jul 2026 05:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Elastic Elastic kibana
Vendors & Products		Elastic Elastic kibana

Wed, 22 Jul 2026 20:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 21 Jul 2026 20:45:00 +0000

Type	Values Removed	Values Added
Description		Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated low-privileged user can exploit an uncontrolled resource consumption vulnerability in Kibana's Canvas functionality by sending a specially crafted request, causing the Kibana server process to terminate and resulting in a denial of service for all users of the affected Kibana instance.
Title		Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
Weaknesses		CWE-400
References		https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-63/388560
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}`

MITRE

Status: PUBLISHED

Assigner: elastic

Published: 2026-07-21T20:35:06.391Z

Updated: 2026-07-22T19:40:41.549Z

Reserved: 2026-07-15T18:23:57.166Z

Link: CVE-2026-63139

Vulnrichment

Updated: 2026-07-22T19:31:56.667Z

NVD

No data.

Redhat

No data.

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