CVE-2026-20166

Published Mar 11, 2026

Last updated 5 days ago

Overview

Description
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 Observability Cloud API access token through the Discover Splunk Observability Cloud app due to improper access control. This vulnerability does not affect Splunk Enterprise versions below 9.4.9 and 9.3.10 because the Discover Splunk Observability Cloud app does not come with Splunk Enterprise.
Source
psirt@cisco.com
NVD status
Analyzed
Products
splunk, splunk_cloud_platform

Risk scores

CVSS 3.1

Type
Secondary
Base score
5.4
Impact score
2.5
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Severity
MEDIUM

Weaknesses

psirt@cisco.com
CWE-200
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-200

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.