Detections
Analytics

Kibana 9.0.x < 9.4.6 / 9.5.x < 9.5.1 Missing Authorization (ESA-2026-149)

medium Nessus Plugin ID 344300

Synopsis

The remote host is affected by a missing authorization vulnerability.

Description

The version of Kibana installed on the remote host is 9.0.x prior to 9.4.6, or 9.5.x prior to 9.5.1. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-149 advisory.

 - Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding minimal Elasticsearch privileges could bypass Kibana feature authorization and space access controls, resulting in the unauthorized disclosure of Fleet deployment metadata from the default Kibana space. (CVE-2026-78603)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update to Kibana version 9.4.6, 9.5.1 or later.

See Also

http://www.nessus.org/u?2a550daa

Plugin Details

Severity: Medium

ID: 344300

File Name: kibana_esa_2026_149.nasl

Version: 1.2

Type: Remote

Family: CGI abuses

Published: 9/9/2026

Updated: 9/10/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS Score Source: CVE-2026-78603

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:elasticsearch:kibana

Required KB Items: installed_sw/Kibana

Exploit Ease: No known exploits are available

Patch Publication Date: 9/1/2026

Vulnerability Publication Date: 9/1/2026

Reference Information

CVE: CVE-2026-78603

IAVB: 2026-B-0244