CVE-2025-20379: 
Splunk Enterprise vulnerability analysis and mitigation

CVE-2025-20379 affects Splunk Enterprise and Splunk Cloud Platform, discovered and disclosed on November 12, 2025. The vulnerability exists in multiple versions of Splunk Enterprise (below 10.0.1, 9.4.5, 9.3.7, and 9.2.9) and Splunk Cloud Platform (below 9.3.2411.116, 9.3.2408.124, 10.0.2503.5 and 10.1.2507.1). This security issue involves a privilege escalation vulnerability where low-privileged users without admin or power roles could potentially execute risky commands with elevated permissions (Splunk Advisory).

The vulnerability allows bypassing SPL safeguards for risky commands through the '/services/streams/search' endpoint using its 'q' parameter. The bypass is achieved by circumventing endpoint restrictions using character encoding in the REST path. The vulnerability has been assigned a CVSSv3.1 base score of 3.5 (Low) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N, indicating network accessibility, low attack complexity, required low privileges, and user interaction. The vulnerability is classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) (Splunk Advisory, NVD).

The successful exploitation of this vulnerability could allow attackers to execute risky commands with elevated permissions, potentially leading to unauthorized access to sensitive information. The impact is limited to confidentiality (Low), with no direct impact on integrity or availability of the system (Splunk Advisory).

Splunk has released patches to address this vulnerability. Users should upgrade Splunk Enterprise to versions 10.0.1, 9.4.5, 9.3.7, 9.2.9, or higher. For Splunk Cloud Platform, Splunk is actively monitoring and patching affected instances. As a workaround, organizations can disable Splunk Web, as the vulnerability only affects instances with Splunk Web enabled (Splunk Advisory).