CVE-2026-76268 (GCVE-0-2026-76268)

Vulnerability from cvelistv5 – Published: 2026-10-07 20:46 – Updated: 2026-10-21 22:52
VLAI
Title
Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
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 (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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 00:00 UTC
CWE
  • CWE-306 - The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 443 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Splunk Splunk Enterprise Affected: 10.4 , < 10.4.3 (custom)
Affected: 10.2 , < 10.2.7 (custom)
guessed Create a notification for this product.
Date Public
2026-10-07 00:00
Credits
Gabriel Nitu, Splunk Ofir Alkoby, Security Researcher, a.security
Show details on NVD website
To clipboard 

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