Blind Server-Side Request Forgery (SSRF) in Splunk Enterprise - CVE-2025-20371
Published: October 7, 2025
Vulnerability identifier: #VU116648
CSH Severity: Medium
CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2025-20371
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can trick the victim into initiating a request from their browser and force the application to initiate REST API calls on behalf of an authenticated high-privileged user.
Successful exploitation of this vulnerability requires that the "enableSplunkWebClientNetloc" setting in the web.conf configuration file to have a value of "true".
Affected software
Splunk Enterprise
How to mitigate CVE-2025-20371
Install updates from vendor's website.
Splunk Enterprise - addressed in versions 9.2.8, 9.3.6, 9.4.4, 10.0.1