---
id: CVE-2026-115298
title: Incorrect Authorization in Elasticsearch Leading to Information Disclosure
summary: >-
  Incorrect Authorization (CWE-863) in Elasticsearch can lead to information
  disclosure via Accessing Functionality Not Properly Constrained by ACLs
  (CAPEC-1). An authenticated user whose index access is restricted by
  field-level security …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-863
vendor: Elastic
product: Elasticsearch
affected:
  - Elasticsearch >= 8.0.0 <= 8.19.23
  - Elasticsearch >= 9.0.0 <= 9.4.8
  - Elasticsearch >= 9.5.0 <= 9.5.5
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T17:31:30.865752Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T17:31:44.007Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115298'
references:
  - url: >-
      https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-209/391362
tags:
  - cve.org
epss: 0.00221
epssPercentile: 0.12833
ingestedAt: '2026-11-05T20:33:06.326Z'
---

## Overview

Incorrect Authorization (CWE-863) in Elasticsearch can lead to information disclosure via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user whose index access is restricted by field-level security can retrieve the value of a constant_keyword field that their role excludes. Some search and query features do not apply the field-level security restriction to this field type.

## Affected

- `Elasticsearch >= 8.0.0 <= 8.19.23`
- `Elasticsearch >= 9.0.0 <= 9.4.8`
- `Elasticsearch >= 9.5.0 <= 9.5.5`

## Remediation

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