Kibana 8.x < 8.19.24 / 9.0.x < 9.4.9 / 9.5.x < 9.5.6 (ESA-2026-237)

high Nessus Plugin ID 375643

Synopsis

The remote host is affected by a vulnerability.

Description

The version of Kibana installed on the remote host is 8.x prior to 8.19.24, or 9.0.x prior to 9.4.9, or 9.5.x prior to 9.5.6. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-237 advisory.

- Improper Certificate Validation (CWE-295) in the operating system certificate bundle shipped in the Docker images of APM Server; Auditbeat, Filebeat, Heartbeat, Metricbeat and Packetbeat; Elastic Agent, including Fleet Server and Cloudbeat; Logstash, for TLS connections that use the operating system certificate bundle; Elastic connectors; Universal Profiling (host agent, collector and symbolizer); and Elastic Maps Server. This certificate bundle, a dependency of these products (Dependency on Vulnerable Third-Party Component, CWE-1395), could allow an attacker to intercept or modify TLS-protected traffic via Signature Spoofing by Key Theft (CAPEC-474). The certificate bundle includes root certificate authorities that signed eight eMudhra intermediate certificate authorities whose private keys are compromised. Anyone with these keys can issue a certificate for any host name that these products accept as trusted. Exploitation requires an attacker in a network position between the product and the remote party, who presents a certificate issued with one of the compromised keys. (CVE-2026-115714)

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

Solution

Upgrade to Kibana version 8.19.24, 9.4.9, or 9.5.6 or later as appropriate for your release branch.

Plugin Details

Severity: High

ID: 375643

File Name: kibana_esa_2026_237.nasl

Version: 1.1

Type: Remote

Family: CGI abuses

Published: 11/3/2026

Updated: 11/3/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.56

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-115714

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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: 11/3/2026

Vulnerability Publication Date: 11/3/2026

Reference Information

CVE: CVE-2026-115714

Detections

Analytics