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CVE-2026-20166

Sensitive Information Disclosure in Discover Splunk Observability Cloud app for Splunk Enterprise

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.2.1, 10.0.4, 10.2.2510.5, 10.1.2507.16, 10.0.2503.12
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Splunk Splunk Enterprise

    From 10.2 · fixed in 10.2.1; From 10.0 · fixed in 10.0.4

  • Splunk Splunk Cloud Platform

    From 10.2.2510 · fixed in 10.2.2510.5; From 10.1.2507 · fixed in 10.1.2507.16; From 10.0.2503 · fixed in 10.0.2503.12

References 1

advisory.splunk.com