Splunk CVE-2025-20231: Sensitive Information Disclosure in Splunk Secure Gateway App

In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could run a search using the permissions of a higher-privileged user that could lead to disclosure of sensitive information.The Splunk Secure Gateway exposes user session and authorization tokens in clear text in the splunk_secure_gateway.log file when it calls the/services/ssg/secretsREST endpoint.The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The authenticated low-privileged user should not be able to exploit the vulnerability at will.