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CVE-2026-76351

Server-Side Request Forgery (SSRF) through the Report Notification REST API 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: total

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 use crafted report notification data to cause Splunk Secure Gateway to send a request to the Splunk Enterprise Representational State Transfer (REST) API using a system-level session token and modify the Splunk platform configuration. The user could then obtain a session token without a password and use it to access all relevant data and affect system integrity. The vulnerability is possible because Splunk Secure Gateway does not validate decoded report notification identifiers before using them to construct requests to the Splunk Enterprise REST API.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  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