CVE-2026-20166
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
ProductSplunk
PublishedMar 11, 2026
First seenMar 11, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- splunk splunk10.0.4 or later
- splunk splunk_cloud_platform10.0.2503.12, 10.1.2507.16, 10.2.2510.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| splunk splunk | 10.0.0 ≤ v < 10.0.4, 10.2.0 | 10.0.4 |
| splunk splunk_cloud_platform | 10.0.2503 ≤ v < 10.0.2503.12, 10.1.2507 ≤ v < 10.1.2507.16, 10.2.2510 ≤ v < 10.2.2510.5 | 10.0.2503.12, 10.1.2507.16, 10.2.2510.5 |
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