CVE-2026-20204
HIGH
MEDIUM
Priority: 0.22
BB Relevance:
45/100
Published: 2026-04-15
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Network
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
Low
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
High
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.
Weakness Classification (1)
Affected Software (9)
| Vendor | Product | Version |
|---|---|---|
| splunk | splunk | 9.3.0 – 9.3.11 |
| splunk | splunk | 9.4.0 – 9.4.10 |
| splunk | splunk | 10.0.0 – 10.0.5 |
| splunk | splunk | 10.2.0 |
| splunk | splunk_cloud_platform | 9.3.2411 – 9.3.2411.127 |
| splunk | splunk_cloud_platform | 10.0.2503 – 10.0.2503.13 |
| splunk | splunk_cloud_platform | 10.1.2507 – 10.1.2507.19 |
| splunk | splunk_cloud_platform | 10.2.2510 – 10.2.2510.9 |
| splunk | splunk_cloud_platform | 10.3.2512 – 10.3.2512.5 |
References & Advisories (1)
Vendor Advisory