CVE-2026-102404
Published:October 06, 2026
Updated:October 13, 2026
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can submit a specially crafted query that causes uncontrolled memory growth in the query processing engine, resulting in an out-of-memory condition that terminates the Elasticsearch node. The condition can be triggered repeatedly, including by queries embedded in shared resources, causing persistent cluster unavailability.
Affected Packages
https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v8.11.0 <v8.19.23Fix Suggestion:
Update to version v8.19.23https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v9.0.0 <v9.4.8Fix Suggestion:
Update to version v9.4.8https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v9.5.0 <v9.5.5Fix Suggestion:
Update to version v9.5.5org.elasticsearch.plugin:x-pack-esql (JAVA):
Affected version(s) >=9.0.0 <9.4.8Fix Suggestion:
Update to version 9.4.8org.elasticsearch.plugin:x-pack-esql (JAVA):
Affected version(s) >=9.5.0 <9.5.5Fix Suggestion:
Update to version 9.5.5org.elasticsearch.plugin:x-pack-esql (JAVA):
Affected version(s) >=8.14.2 <8.19.23Fix Suggestion:
Update to version 8.19.23Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Resource Consumption
EPSS
Base Score:
0.30