Critical [CVE-2026-76268] Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
This critical-severity Splunk advisory covers CVE-2026-76268 affecting Splunk Enterprise.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
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 ( ) in the Splunk documentation.
Splunk Enterprise versions 10.0.x and 9.4.x are not affected.
- Splunk Enterprise 10.4 before 10.4.3
- Splunk Enterprise 10.2 before 10.2.7
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
- 10.4.3
- 10.2.7
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation
Upgrade to a fixed release: 10.4.3, 10.2.7. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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