---
id: CVE-2026-94408
title: >-
  Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial
  of service via Excessive Allocation (CAPEC-130)
summary: >-
  Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial
  of service via Excessive Allocation (CAPEC-130)
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: Elastic
product: Elasticsearch
affected:
  - Elasticsearch >= 8.0.0 <= 8.19.21
  - Elasticsearch >= 9.0.0 <= 9.4.6
  - Elasticsearch >= 9.5.0 <= 9.5.2
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T23:16:40.443'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94408'
references:
  - url: >-
      https://discuss.elastic.co/t/elasticsearch-8-19-22-9-4-7-9-5-3-security-update-esa-2026-184/390688
    label: security@elastic.co
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-26T22:58:53.693615Z'
ingestedAt: '2026-09-26T21:38:01.505Z'
---

## Overview

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.