CVE-2026-26936

Inefficient Regular Expression Complexity (CWE-1333) in the AI Inference Anonymization Engine in Kibana can lead Denial of Service via Regular Expression Exponential Blowup (CAPEC-492).

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/kibana-8-19-11-9-2-5-security-update-esa-2026-14/385250	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

17 Jun 2026, 10:26

Type	Values Removed	Values Added
Summary		(es) Complejidad Ineficiente de Expresiones Regulares (CWE-1333) en el Motor de Anonimización de Inferencia de IA en Kibana puede provocar denegación de servicio mediante la Expansión Exponencial de Expresiones Regulares (CAPEC-492).

02 Mar 2026, 16:01

Type	Values Removed	Values Added
References	~~() https://discuss.elastic.co/t/kibana-8-19-11-9-2-5-security-update-esa-2026-14/385250 -~~	() https://discuss.elastic.co/t/kibana-8-19-11-9-2-5-security-update-esa-2026-14/385250 - Vendor Advisory
First Time		Elastic Elastic kibana
CPE		cpe:2.3:a:elastic:kibana::::::::

26 Feb 2026, 18:23

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-26 18:23

Updated : 2026-06-17 10:26

NVD link : CVE-2026-26936

Mitre link : CVE-2026-26936

CVE.ORG link : CVE-2026-26936

JSON object : View

Products Affected

elastic

kibana

CWE

CWE-1333

Inefficient Regular Expression Complexity

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