CVE-2025-20321

Membership State Change in Splunk Search Head Cluster through a Cross-Site Request Forgery (CSRF) in Splunk Enterprise

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: Splunk Splunk Enterprise
Affected: Splunk Splunk Enterprise Cloud
Published at:
Updated at:

References

Link Tags
https://advisory.splunk.com/advisories/SVD-2025-0704

Frequently Asked Questions

What is the severity of CVE-2025-20321?
CVE-2025-20321 has been scored as a medium severity vulnerability.
How to fix CVE-2025-20321?
To fix CVE-2025-20321, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-20321 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-20321 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-20321?
CVE-2025-20321 affects Splunk Splunk Enterprise, Splunk Splunk Enterprise Cloud.
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