Splunk Enterprise and Cloud Platform
CVE-2025-20300: Improper Access Control Lets Low-Privilege Users Suppress Read-Only Alerts in Splunk Enterprise
In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.6, and 9.1.9 and Splunk Cloud Platform versions below 9.3.2411.103, 9.3.2408.112, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles, and has read-only access to a specific alert, could suppress that alert when it triggers.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Splunk Enterprise 9.4 | 9.4.2 or later |
| Splunk Enterprise 9.3 | 9.3.5 or later |
| Splunk Enterprise 9.2 | 9.2.6 or later |
| Splunk Enterprise 9.1 | 9.1.9 or later |
| Splunk Cloud Platform 9.3 | 9.3.2411.103 or later |
| Splunk Cloud Platform 9.3 | 9.3.2408.112 or later |
| Splunk Cloud Platform 9.2 | 9.2.2406.119 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.6, and 9.1.9 and Splunk Cloud Platform versions below 9.3.2411.103, 9.3.2408.112, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles, and has read-only access to a specific alert, could suppress that alert when it triggers. See [Define alert suppression groups to throttle sets of similar alerts](https://help.splunk.com/en/splunk-enterprise/alert-and-respond/alerting-manual/9.4/manage-alert-trigger-conditions-and-throttling/define-alert-suppression-groups-to-throttle-sets-of-similar-alerts).
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.