---
id: CVE-2026-78583
title: >-
  Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation
  via Input Data Manipulation (CAPEC-153)
summary: >-
  Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation
  via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege
  declarations originating from integration packages were not validated before
  being used…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-863
vendor: elastic
product: kibana
affected:
  - 'kibana >= 8.0.0, < 8.19.21'
  - 'kibana >= 9.0.0, < 9.4.6'
  - 'kibana >= 9.5.0, < 9.5.3'
patched:
  - kibana 9.5.3
published: '2026-09-03'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T16:48:51.010'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78583'
references:
  - url: >-
      https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158
    label: security@elastic.co
tags:
  - nvd
epss: 0.00221
epssPercentile: 0.12946
ingestedAt: '2026-09-08T17:06:31.877Z'
---

## Overview

Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration.

## Affected

- `kibana >= 8.0.0, < 8.19.21`
- `kibana >= 9.0.0, < 9.4.6`
- `kibana >= 9.5.0, < 9.5.3`

## Remediation

Upgrade past the affected range:

- `kibana 9.5.3`