CVE-2026-76268
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.
- Affected
- Splunk · Splunk Enterprise
- CVSS v3.1 CISCO
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 1.59% chance of exploitation in the next 30 days, 75th percentile
- Nuclei
- critical · CWE-306
- Published
- 2026-10-07
- Updated
- 2026-10-09
Proof-of-concept exploits (1)
- murrez/CVE-2026-762683★ · 2026-10-13