What is CVE-2026-20163?

CVE-2026-20163 is a high-severity vulnerability in Splunk, classified under Command Injection. CVSS score: 7.2/10. Published 2026-03-11.

How severe is CVE-2026-20163?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Splunk

CVE-2026-20163

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.005 (37.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Splunk
Splunk Cloud Platform — versions 10.2.2510, 10.0.2503, 10.1.2507
Splunk Splunk_cloud_platform
Splunk Enterprise — versions 10.0, 9.4, 9.3

Weakness classification (CWE)

CWE-77 — Command Injection

References

psirt@cisco.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-20163?: CVE-2026-20163 is a high-severity vulnerability in Splunk, classified under Command Injection. CVSS score: 7.2/10. Published 2026-03-11.
How severe is CVE-2026-20163?: High severity. CVSS v3 base score is 7.2 out of 10.