CVE-2026-20204

Published Apr 15, 2026

Last updated 6 days ago

Overview

Description
In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.
Source
psirt@cisco.com
NVD status
Analyzed
Products
splunk, splunk_cloud_platform

Risk scores

CVSS 3.1

Type
Primary
Base score
7.1
Impact score
5.9
Exploitability score
1.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

psirt@cisco.com
CWE-377

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.