Detections
Analytics

Splunk Enterprise 9.2.0 < 9.2.11, 9.3.0 < 9.3.9, 9.4.0 < 9.4.7, 10.0.0 < 10.0.2 (SVD-2026-0203)

medium Nessus Plugin ID 299407

Synopsis

An application running on a remote web server host is affected by a vulnerability

Description

The version of Splunk installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the SVD-2026-0203 advisory.

 - In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.7, 9.3.9, and 9.2.11, a user of a Splunk Search Head Cluster (SHC) deployment who holds a role with access to the Splunk _internal index could view the integrationKey, secretKey, and appSecretKey secrets, generated by Duo Two-Factor Authentication for Splunk Enterprise, in plain text.See the following for more information: Specify searchable indexes for a roleConfigure Splunk Enterprise to use Duo Security multifactor authenticationDuo Multi-Factor Authentication (MFA) vendor settings in the Authentication.conf configuration file reference (CVE-2026-20138)

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

Solution

Upgrade Splunk Enterprise to versions 10.2.0, 10.0.2, 9.4.7, 9.3.9, 9.2.11, or higher.

See Also

https://advisory.splunk.com/advisories/SVD-2026-0203.html

Plugin Details

Severity: Medium

ID: 299407

File Name: splunk_1002_cve-2026-20138.nasl

Version: 1.1

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 2/18/2026

Updated: 2/18/2026

Configuration: Enable paranoid mode

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:A/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-20138

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: cpe:/a:splunk:splunk

Required KB Items: installed_sw/Splunk, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 2/18/2026

Vulnerability Publication Date: 2/18/2026

Reference Information

CVE: CVE-2026-20138

CWE: 532