CVE-2026-20166

EUVD-2026-11234

11.03.2026, 17:16

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	5.4 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Affected Products (NVD)

Vendor	Product	Version
splunk	splunk	10.0.0 ≤ 𝑥 < 10.0.4
splunk	splunk	10.2.0
splunk	splunk_cloud_platform	10.0.2503 ≤ 𝑥 < 10.0.2503.12
splunk	splunk_cloud_platform	10.1.2507 ≤ 𝑥 < 10.1.2507.16
splunk	splunk_cloud_platform	10.2.2510 ≤ 𝑥 < 10.2.2510.5

𝑥

= Vulnerable software versions

Common Weakness Enumeration

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

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