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CVE-2026-76256

Information Exposure through REST API Endpoints in Splunk Secure Gateway

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.4.2, 10.2.6, 10.0.9, 9.4.14, 3.10.9, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could read sensitive Security Assertion Markup Language setup and instance settings information through Splunk Secure Gateway Representational State Transfer (REST) API endpoints. The vulnerability is possible because the affected Security Assertion Markup Language setup and instance settings REST API endpoints do not enforce authorization requirements before returning configuration information.

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 10.4 · fixed in 10.4.2; From 10.2 · fixed in 10.2.6; From 10.0 · fixed in 10.0.9; From 9.4 · fixed in 9.4.14

  • Splunk Splunk Secure Gateway

    From 3.10 · fixed in 3.10.9; From 3.9 · fixed in 3.9.23; From 3.8 · fixed in 3.8.70

References 1

advisory.splunk.com