CVE-2026-76268: critical vulnerability in Splunk Enterprise
Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
Published
25Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8
exploitation probability
—
observed exploitation
nono source reports it
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Splunk · Splunk EnterpriseRelated CVEs — Splunk Enterprise
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