CVE-2026-20163
Remote Command Execution (RCE) through the '/splunkd/__upload/indexing/preview' REST endpoint in Splunk Enterprise
Severity
High 8
CVSS 3.1
Exploited
Not listed
EPSS
0.005
39.3th percentile
Discovered by
Not disclosed
Published
Mar 11, 2026
Assigned by cisco
Description
In Splunk Enterprise versions below 10.2.0, 10.0.4, 9.4.9, and 9.3.10, and Splunk Cloud Platform versions below 10.2.2510.5, 10.0.2503.12, 10.1.2507.16, and 9.3.2411.124, a user who holds a role that contains the high-privilege capability `edit_cmd` could execute arbitrary shell commands using the `unarchive_cmd` parameter for the `/splunkd/__upload/indexing/preview` REST endpoint.
Weakness: CWE-77
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Splunk Cloud Platform | SIEM & Log Management | cna-assigner |
| Cisco | Splunk Enterprise | SIEM & Log Management | cna-assigner |
Vendor-reported products (2)
- Splunk · Splunk Enterprise
- Splunk · Splunk Cloud Platform
Credit
Danylo Dmytriiev (DDV_UA) <br><br>Gabriel Nitu, Splunk<br><br>James Ervin, Splunk