CVE-2025-20371: Splunk

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

In Splunk Enterprise versions below 10.0.1, 9.4.4, 9.3.6 and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.109, 9.3.2408.119 and 9.2.2406.122, an unauthenticated attacker could trigger a blind server-side request forgery (SSRF) potentially letting an attacker perform REST API calls on behalf of an authenticated high-privileged user.

Affected products

• Splunk Splunk: from 9.2.0, before 9.2.8 (fixed in 9.2.8); from 9.3.0, before 9.3.6 (fixed in 9.3.6); from 9.4.0, before 9.4.4 (fixed in 9.4.4); version 10.0.0 only
• Splunk Splunk Cloud Platform: from 9.2.2406, before 9.2.2406.122 (fixed in 9.2.2406.122); from 9.3.2408, before 9.3.2408.119 (fixed in 9.3.2408.119); from 9.3.2411, before 9.3.2411.109 (fixed in 9.3.2411.109)

Published 2025-10-01. Last modified 2026-06-17.