[ CVE-2026-76268 · Published 7 Oct 2026 ]
Vulnerability in Splunk Enterprise
[ Why it matters ]Priority signals
- Critical severity: CVSS 9.8
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
-
NCSC-NLNCSC-2026-0412
Vulnerabilities fixed in Splunk Enterprise Translated from Dutch
-
CERT-FRCERTFR-2026-AVI-1281
Multiple vulnerabilities in Splunk products Translated from French
Multiple vulnerabilities have been discovered in Splunk products. Some of them allow an attacker to cause remote arbitrary code execution, privilege escalation and a breach of data confidentiality.
-
BSI CERT-BundWID-SEC-2026-3799
Splunk Enterprise: Multiple vulnerabilities Translated from German
[ References ]References
- advisory.splunk.com/advisories/SVD-2026-1001Vendor AdvisoryMitigation