Detections
Analytics

Splunk Enterprise 10.0.0 < 10.0.5, 10.2.0 < 10.2.2 (SVD-2026-0503)

high Nessus Plugin ID 315750

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-2026-0503 advisory.

 - In Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a role that has access to the `_internal` index could view session cookies and response bodies that contain sensitive data.
 (CVE-2026-20239)

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 10.2.2, 10.0.5, or higher.Splunk is actively monitoring and patching Splunk Cloud Platform instances.

See Also

https://advisory.splunk.com/advisories/SVD-2026-0503.html

Plugin Details

Severity: High

ID: 315750

File Name: splunk_1022_cve-2026-20239.nasl

Version: 1.1

Type: Combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 5/20/2026

Updated: 5/20/2026

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: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-20239

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:L/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: Settings/ParanoidReport, installed_sw/Splunk

Exploit Ease: No known exploits are available

Patch Publication Date: 5/20/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-20239

CWE: 532