Elasticsearch StackOverflow vulnerability

published 2023-10-26 3 y ago modified 2026-09-08 2 mo ago also BIT-elasticsearch-2023-31419 , EUVD-2023-2797 , GHSA-qwrx-45xf-jjf7

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 61.1%; EPSS 61.1% chance of exploitation in 30 days, percentile 99.1%
public exploits: 0; none known

A flaw was discovered in Elasticsearch, affecting the _search API that allowed a specially crafted query string to cause a Stack Overflow and ultimately a Denial of Service.

Patch / fix

fixed in 3

maven org.elasticsearch:elasticsearch 7.17.13, 8.9.1
bitnami elasticsearch 7.17.13, 8.9.1
Elastic Elasticsearch 7.17.12, 8.9.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-31419 updated 2026-08-04 cvss 7.5

elasticsearch: StackOverflow vulnerability

Red Hat JBoss Fuse Service Works 6 elasticsearch
affected: no fix planned “Out of support scope”
Red Hat Quay 3 quay/quay-rhel8
affected: no fix planned “Will not fix”
Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/fluentd-rhel8, openshift-logging/kibana6-rhel8, openshift-logging/elasticsearch6-rhel8
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

61.07% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
GitHub	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
maven	org.elasticsearch:elasticsearch	>=7.0.0, <7.17.13 >=8.0.0, <8.9.1	7.17.13 8.9.1
bitnami	elasticsearch	>=7.0.0, <7.17.13 >=8.0.0, <8.9.1	7.17.13 8.9.1

Affected products

Elastic Elasticsearch

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-787 Out-of-bounds Write

References

discuss.elastic.co /t/elasticsearch-8-9-1-7-17-13-security-update/343297
web, vendor-advisory, advisory
elastic.co /community/security
web, vendor-advisory, advisory
security.netapp.com /advisory/ntap-20231116-0010/
third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2023-31419
advisory, web
security.netapp.com /advisory/ntap-20231116-0010
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary