Splunk Enterprise and Cloud Platform
CVE-2023-22938: Permissions Validation Failure in the ‘sendemail’ REST API Endpoint in Splunk Enterprise
In Splunk Enterprise versions below 8.1.13, 8.2.10, and 9.0.4, the ‘sendemail’ REST API endpoint lets any authenticated user send an email as the Splunk instance.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 4.3
EPSS0.36%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
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 8.1 | 8.1.13 or later |
| Splunk Enterprise 8.2 | 8.2.10 or later |
| Splunk Enterprise 9.0 | 9.0.4 or later |
| Splunk Cloud Platform - | 9.0.2212 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
In Splunk Enterprise versions below 8.1.13, 8.2.10, and 9.0.4, the ‘sendemail’ REST API endpoint lets any authenticated user send an email as the Splunk instance. The endpoint is now restricted to the ‘splunk-system-user’ account on the local instance.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.