CVE-2026-76347: Splunk

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

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 Server-Side Request Forgery (SSRF) in report notifications to send system-authenticated requests to internal Splunk services, which could allow for changes to Search Head Cluster state and a denial of service. The vulnerability is possible because Splunk Secure Gateway does not validate report notification path values before it sends internal requests.

Affected products

• Splunk Splunk: from 9.4.0, before 9.4.14 (fixed in 9.4.14); from 10.0.0, before 10.0.9 (fixed in 10.0.9); from 10.2.0, before 10.2.6 (fixed in 10.2.6); from 10.4.0, before 10.4.2 (fixed in 10.4.2)
• Splunk Splunk Secure Gateway: from 3.8.0, before 3.8.70 (fixed in 3.8.70); from 3.9.0, before 3.9.23 (fixed in 3.9.23); from 3.10.0, before 3.10.9 (fixed in 3.10.9)

Published 2026-08-19. Last modified 2026-08-21.