CVE-2026-20239

Published: May 20, 2026Modified: Jul 23, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

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.

Affected (6)

Products: Splunk: Splunk, Splunk Cloud Platform

Splunk

2 products

Splunk

Splunk Cloud Platform

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Splunk Splunk	From 10.0.0 to 10.0.5
Splunk Splunk	From 10.2.0 to 10.2.2

Configuration B

4 vulnerable

Vulnerable Software	Affected Versions
Splunk Splunk Cloud Platform	From 10.0.2503 to 10.0.2503.13
Splunk Splunk Cloud Platform	From 10.1.2507 to 10.1.2507.21
Splunk Splunk Cloud Platform	From 10.2.2510 to 10.2.2510.11
Splunk Splunk Cloud Platform	From 10.3.2512 to 10.3.2512.8

Related CWEs

CWE-532

Insertion of Sensitive Information into Log File

Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.

References (1)

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

Source: psirt@cisco.com

Vendor Advisory

Timeline

No history available yet.