CVE-2023-31418

HighCVSS 7.5/10Last modified Jun 17, 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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published: Oct 26, 2023
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2023

CVE-2023-314197.5A flaw was discovered in Elasticsearch, affecting the _search API that allowed a specially crafted query string to cause a Stack Overflow an CVE-2023-31425.4Cross-site Scripting (XSS) - Stored in GitHub repository microweber/microweber prior to 2.0.CVE-2023-314217.5It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server cert CVE-2023-314227.5An issue was discovered by Elastic whereby sensitive information is recorded in Kibana logs in the event of an error. The issue impacts only CVE-2023-314235.5Possible information exposure through log file vulnerability where sensitive fields are recorded in the configuration log without masking CVE-2023-314249.8Brocade SANnav Web interface before Brocade SANnav v2.3.0 and v2.2.2a allows remote unauthenticated users to bypass web authentication and CVE-2023-314257.8A vulnerability in the fosexec command of Brocade Fabric OS after Brocade Fabric OS v9.1.0 and, before Brocade Fabric OS v9.1.1 could allow CVE-2023-314266.5The Brocade Fabric OS Commands “configupload” and “configdownload” before Brocade Fabric OS v9.1.1c, v8.2.3d, v9.2.0 print scp, sftp, ftp se CVE-2023-314277.8Brocade Fabric OS versions before Brocade Fabric OS v9.1.1c, and v9.2.0 Could allow an authenticated, local user with knowledge of full path CVE-2023-314285.5Brocade Fabric OS before Brocade Fabric OS v9.1.1c, v9.2.0 contains a vulnerability in the command line that could allow a local user to dum CVE-2023-314295.5Brocade Fabric OS before Brocade Fabric OS 9.1.1c, 9.2.0 contains a vulnerability when using various commands such as “chassisdistribute”, “CVE-2023-31435.4A vulnerability classified as problematic has been found in SourceCodester Online Discussion Forum Site 1.0. Affected is an unknown function