vulnerability

Elastic Elasticsearch: CVE-2023-31418: Uncontrolled Resource Consumption

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Severity

CVSS

(AV:N/AC:L/Au:N/C:N/I:N/A:C)

Published

Oct 26, 2023

Added

May 13, 2025

Modified

Mar 25, 2026

Description

An issue has been identified with how Elasticsearch handled incoming requests on the HTTP layer. An unauthenticated user could force an Elasticsearch node to exit with an OutOfMemory error by sending a moderate number of malformed HTTP requests. The issue was identified by Elastic Engineering and we have no indication that the issue is known or that it is being exploited in the wild.

Solution

elastic-elasticsearch-upgrade-latest

References

CWE-400
CVE-2023-31418
https://attackerkb.com/topics/CVE-2023-31418
https://discuss.elastic.co/t/elasticsearch-8-9-0-7-17-13-security-update/343616
https://security.netapp.com/advisory/ntap-20231130-0005/
https://www.elastic.co/community/security
https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-2618

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