CVE-2026-4498

HIGH

Execution with Unnecessary Privileges in Kibana Leading to reading index data beyond their direct Elasticsearch RBAC scope

Title source: cna

Description

Execution with Unnecessary Privileges (CWE-250) in Kibana’s Fleet plugin debug route handlers can lead reading index data beyond their direct Elasticsearch RBAC scope via Privilege Abuse (CAPEC-122). This requires an authenticated Kibana user with Fleet sub-feature privileges (such as agents, agent policies, and settings management).

References (1)

https://discuss.elastic.co/t/kibana-8-19-14-9-2-8-9-3-3-security-update-esa-2026-21/385811

Scores

CVSS v3 7.7

EPSS 0.0005

EPSS Percentile 16.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-250

Status published

Products (2)

Elastic/Kibana 8.0.0 - 8.19.13

elastic/kibana 8.0.0 - 8.19.14

Published Apr 08, 2026

Tracked Since Apr 08, 2026