Vulnerability in Splunk
CVE-2025-20366
In Splunk Enterprise versions below 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.111, 9.3.2408.119, and 9.2.2406.122, a low-privileged user that does not hold the admin or power Splunk roles could access sensitive search results if Splunk Enterprise runs an administrative search job in the background. If the low privileged user guesses the search job’s unique Search ID (SID), the user could retrieve the results of that job, potentially exposing sensitive search results. For more information see https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/about-jobs-and-job-management and https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.0/manage-jobs/manage-search-jobs.
EPSS: 0.004 (33.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Splunk
- Splunk Cloud Platform — versions 9.3.2411, 9.3.2408, 9.2.2406
- Splunk Splunk_cloud_platform
- Splunk Enterprise — versions 10.0, 9.4, 9.3
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-20366?
- CVE-2025-20366 is a medium-severity vulnerability in Splunk, classified under Improper Access Control. CVSS score: 6.5/10. Published 2025-10-01.
- How severe is CVE-2025-20366?
- Medium severity. CVSS v3 base score is 6.5 out of 10.