Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
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.
CVE-2026-76268
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-76268
Splunk Enterprise
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Splunk",
"modules": [
"REST API"
],
"product": "Splunk Enterprise",
"versions": [
{
"status": "affected",
"version": "10.4",
"lessThan": "10.4.3",
"versionType": "custom"
},
{
"status": "affected",
"version": "10.2",
"lessThan": "10.2.7",
"versionType": "custom"
}
]
}
]- Related CVEs
- CVE-2026-76268
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #50008 · Revision 1
- Added to Heist Feed
- Publisher date