CVE-2026-20166

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.

Affected Software

VendorProductVersion RangeStatus
SplunkSplunk Enterprise10.2 < 10.2.1affected
SplunkSplunk Enterprise10.0 < 10.0.4affected
SplunkSplunk Cloud Platform10.2.2510 < 10.2.2510.5affected
SplunkSplunk Cloud Platform10.1.2507 < 10.1.2507.16affected
SplunkSplunk Cloud Platform10.0.2503 < 10.0.2503.12affected

Weaknesses

  • CWE-200: The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References