CVE-2026-20166 (GCVE-0-2026-20166)

Vulnerability from cvelistv5 – Published: 2026-03-11 16:18 – Updated: 2026-03-12 16:19
VLAI
Title
Sensitive Information Disclosure in Discover Splunk Observability Cloud app for Splunk Enterprise
Summary
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.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-12 15:40 UTC
CWE
  • CWE-200 - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 443 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Splunk Splunk Enterprise Affected: 10.2 , < 10.2.1 (custom)
Affected: 10.0 , < 10.0.4 (custom)
guessed Create a notification for this product.
Splunk Splunk Cloud Platform Affected: 10.2.2510 , < 10.2.2510.5 (custom)
Affected: 10.1.2507 , < 10.1.2507.16 (custom)
Affected: 10.0.2503 , < 10.0.2503.12 (custom)
guessed Create a notification for this product.
Date Public
2026-03-11 00:00
Credits
Will Zgoda, Splunk
Show details on NVD website
To clipboard 

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