What is CVE-2026-20166?

CVE-2026-20166 is a medium-severity vulnerability in Splunk Cloud Platform, classified under Information Disclosure. CVSS score: 5.4/10. Published 2026-03-11.

How severe is CVE-2026-20166?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Information disclosure in Splunk Cloud Platform

CVE-2026-20166

In Splunk Enterprise versions below 10.2.1 and 10.0.4, and Splunk Cloud Platform versions below 10.2.2510.5, 10.1.2507.16, and 10.0.2503.12, a low-privileged user that does not hold the "admin" or "power" Splunk roles could retrieve the Ob…

Vulnerability class: Information Disclosure

EPSS: 0.000 (13.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Splunk Cloud Platform — versions 10.2.2510, 10.1.2507, 10.0.2503
Splunk Enterprise — versions 10.2, 10.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

advisory.splunk.com/advisories/SVD-2026-0305

Frequently asked questions

What is CVE-2026-20166?: CVE-2026-20166 is a medium-severity vulnerability in Splunk Cloud Platform, classified under Information Disclosure. CVSS score: 5.4/10. Published 2026-03-11.
How severe is CVE-2026-20166?: Medium severity. CVSS v3 base score is 5.4 out of 10.