CVE-2026-33461 HIGH

CVE-2026-33461: Incorrect Authorization in Kibana Fleet Leading to Information Disclosure

Vendor Elastic
Product Kibana
Weakness CWE-863 · Incorrect authorization
Published April 8, 2026
Last update April 9, 2026

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Incorrect Authorization (CWE-863) in Kibana can lead to information disclosure via Privilege Abuse (CAPEC-122). A user with limited Fleet privileges can exploit an internal API endpoint to retrieve sensitive configuration data, including private keys and authentication tokens, that should only be accessible to users with higher-level settings privileges. The endpoint composes its response by fetching full configuration objects and returning them directly, bypassing the authorization checks enforced by the dedicated settings APIs.

Key dates

02Disclosure timeline

April 8, 2026 CVE published
April 9, 2026 Record updated