Splunk Enterprise and Cloud Platform
CVE-2026-20166: Sensitive Information Disclosure in Discover Splunk Observability Cloud app for Splunk Enterprise
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Splunk Enterprise 10.2 | 10.2.1 or later |
| Splunk Enterprise 10.0 | 10.0.4 or later |
| Splunk Cloud Platform 10.2 | 10.2.2510.5 or later |
| Splunk Cloud Platform 10.1 | 10.1.2507.16 or later |
| Splunk Cloud Platform 10.0 | 10.0.2503.12 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.