CVE-2026-20166

Published: Mar 11, 2026Modified: Jun 17, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.5

Source: psirt@cisco.com (Secondary)

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.

Affected (5)

Products: Splunk: Splunk, Splunk Cloud Platform

Splunk

2 products

Splunk

Splunk Cloud Platform

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Splunk Splunk	From 10.0.0 to 10.0.4
Splunk Splunk	Version 10.2.0

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Splunk Splunk Cloud Platform	From 10.0.2503 to 10.0.2503.12
Splunk Splunk Cloud Platform	From 10.1.2507 to 10.1.2507.16
Splunk Splunk Cloud Platform	From 10.2.2510 to 10.2.2510.5

Related CWEs

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References (1)

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

Source: psirt@cisco.com

Vendor Advisory

Timeline

No history available yet.