CVE-2025-37731

Improper Authentication in Elasticsearch PKI realm can lead to user impersonation via specially crafted client certificates. A malicious actor would need to have such a crafted client certificate signed by a legitimate, trusted Certificate Authority.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-27/384063	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::

History

07 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Autenticación incorrecta en el reino PKI de Elasticsearch puede conducir a la suplantación de identidad de usuarios mediante certificados de cliente especialmente diseñados. Un actor malicioso necesitaría tener un certificado de cliente así diseñado firmado por una Autoridad de Certificación legítima y de confianza.

Information

Published : 2025-12-15 11:15

Updated : 2026-10-07 19:10

NVD link : CVE-2025-37731

Mitre link : CVE-2025-37731

CVE.ORG link : CVE-2025-37731

JSON object : View

Products Affected

elastic

elasticsearch

CWE

CWE-287

Improper Authentication

NVD-CWE-noinfo

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