Missing Authentication for Critical Function in Splunk Secure Gateway - CVE-2026-76268
Published: October 12, 2026
Vulnerability identifier: #VU154103
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-76268
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary operating-system commands.
The vulnerability exists due to missing authentication for critical configuration operations in the Patroni REST API when handling configuration requests. A remote attacker can invoke critical configuration operations without authentication to execute arbitrary operating-system commands.
Exploitation requires network access to the Patroni REST API on a search head cluster member.
Affected software
Splunk Secure Gateway
Splunk Enterprise
Splunk Enterprise
How to mitigate CVE-2026-76268
Install security update from vendor's website.
Splunk Secure Gateway - addressed in versions 3.8.72, 3.9.25, 3.10.11
Splunk Enterprise - addressed in versions 9.4.15, 10.0.10, 10.2.7, 10.4.3
Splunk Enterprise - addressed in versions 9.4.15, 10.0.10, 10.2.7, 10.4.3