CVE-2025-20321

Medium

Description

In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7 and 9.1.10, and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.114, and 9.2.2406.119, an unauthenticated attacker can send a specially-crafted SPL search that could change the membership state in a Splunk Search Head Cluster (SHC) through a Cross-Site Request Forgery (CSRF), potentially leading to the removal of the captain or a member of the SHC.<br><br>The vulnerability requires the attacker to phish the administrator-level victim by tricking them into initiating a request within their browser. The attacker should not be able to exploit the vulnerability at will.

SeverityMedium
CVSS6.5
Exploit probability—
ProductSplunk
PublishedJul 7, 2025
First seenJul 7, 2025

How to fix

Update
  • splunk splunk9.1.10, 9.2.7, 9.3.5, 9.4.3 or later
  • splunk splunk_cloud_platform9.2.2406.119, 9.3.2408.114, 9.3.2411.104 or later

Affected products

ProductAffected versionsFixed in
splunk splunk9.1.0 ≤ v < 9.1.10, 9.2.0 ≤ v < 9.2.7, 9.3.0 ≤ v < 9.3.5, 9.4.0 ≤ v < 9.4.39.1.10, 9.2.7, 9.3.5, 9.4.3
splunk splunk_cloud_platform9.2.2406 ≤ v < 9.2.2406.119, 9.3.2408 ≤ v < 9.3.2408.114, 9.3.2411 ≤ v < 9.3.2411.1049.2.2406.119, 9.3.2408.114, 9.3.2411.104

Check your version

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