CVE-2025-37731
December 15, 2025
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
https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v9.0.0 <v9.1.7Fix Suggestion:
Update to version v9.1.7https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) =v9.2.0 <v9.2.1Fix Suggestion:
Update to version v9.2.1https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v8.0.0 <v8.19.7Fix Suggestion:
Update to version v8.19.7org.elasticsearch.plugin:x-pack-security (JAVA):
Affected version(s) >=8.0.0 <8.19.7Fix Suggestion:
Update to version 8.19.7org.elasticsearch:elasticsearch (JAVA):
Affected version(s) >=7.0.0-alpha1 <8.19.8Fix Suggestion:
Update to version 8.19.8org.elasticsearch.plugin:x-pack-security (JAVA):
Affected version(s) >=9.0.0 <9.1.7Fix Suggestion:
Update to version 9.1.7org.elasticsearch:elasticsearch (JAVA):
Affected version(s) >=9.0.0-beta1 <9.1.8Fix Suggestion:
Update to version 9.1.8org.elasticsearch.plugin:x-pack-security (JAVA):
Affected version(s) =9.2.0 <9.2.1Fix Suggestion:
Update to version 9.2.1org.elasticsearch:elasticsearch (JAVA):
Affected version(s) >=9.2.0 <9.2.2Fix Suggestion:
Update to version 9.2.2Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
EPSS
Base Score:
0.05
