CVE-2025-37731

MEDIUM6.8EPSS 0.04%

Elasticsearch Improper Authentication

Published: 12/15/2025Modified: 12/19/2025

Also known as:GHSA-m9gh-789g-q5pvBIT-elasticsearch-2025-37731

Description

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.

Affected packages (2)

Bitnami/elasticsearchfrom 0, < 8.19.8, >= 9.0.0, < 9.1.8, >= 9.2.0, < 9.2.2
Maven/org.elasticsearch:elasticsearch>= 7.0.0-alpha1, < 8.19.8

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM6.8	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-37731
PATCHhttps://github.com/elastic/elasticsearch
WEBhttps://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-27/384063
WEBhttps://github.com/elastic/elasticsearch/commit/cd97b8566bf56e628070021300784cb9cee0286f
WEBhttps://github.com/elastic/elasticsearch/commit/d8a408da79f214395845d99d241e832077045983
WEBhttps://github.com/elastic/elasticsearch/commit/e519fe4c51a3c887675eb7daea2f914738847f23