Detections
Analytics

Splunk Universal Forwarder 9.4.0 < 9.4.14, 10.0.0 < 10.0.9, 10.2.0 < 10.2.6, 10.4.0 < 10.4.2 (SVD-2026-0803)

critical Nessus Plugin ID 338189

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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-2026-0803 advisory.

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 Universal Forwarder to versions 10.4.2, 10.2.6, 10.0.9, 9.4.14, or higher.

See Also

https://advisory.splunk.com/advisories/SVD-2026-0803.html

Plugin Details

Severity: Critical

ID: 338189

File Name: splunk_1042_svd-2026-0803.nasl

Version: 1.2

Type: Combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 8/19/2026

Updated: 8/25/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.77

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-31789

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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, cpe:/a:splunk:universal_forwarder

Exploit Ease: No known exploits are available

Patch Publication Date: 8/19/2026

Vulnerability Publication Date: 8/19/2026

Reference Information

CVE: CVE-2026-28388, CVE-2026-28389, CVE-2026-28390, CVE-2026-31789, CVE-2026-31790