Vulnerability · Published Mar 11, 2026 · Assigned by cisco
CVE-2026-20166Sensitive Information Disclosure in Discover Splunk Observability Cloud app for Splunk Enterprise
Medium 5.4
In plain English
A medium-severity information exposure in Splunk Cloud Platform from Splunk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk Enterprise | 10.2 – before 10.2.110.0 – before 10.0.4 |
| Splunk | Splunk Cloud Platform | 10.2.2510 – before 10.2.2510.510.1.2507 – before 10.1.2507.1610.0.2503 – before 10.0.2503.12 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N