Description
In Splunk Enterprise versions below 10.4.3 and 10.2.7, an unauthenticated user with network access to the Patroni Representational State Transfer (REST) Application Programming Interface (API) on a search head cluster member could execute attacker-controlled operating-system commands. The vulnerability is possible because this interface does not require authentication for critical configuration operations. For more information see Sidecar configuration settings (https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation. Splunk Enterprise versions 10.0.x and 9.4.x are not affected.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Splunk / splunk10.2.0 – 10.2.7
- Splunk / Splunk Enterprise10.4 – 10.4.3
- Splunk / Splunk Enterprise10.2 – 10.2.7
Exploits & proofs of concept
- nucleiSplunk Enterprise Patroni REST API - Missing Authentication RCEby DhiyaneshDk
References
- VENDOR_ADVISORYhttps://advisory.splunk.com/advisories/SVD-2026-1001
Updated 29m ago · 8 sources