Improper access control in Splunk Secure Gateway - CVE-2026-76265
Published: October 12, 2026
Vulnerability identifier: #VU154100
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-76265
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to access privileged Splunk Secure Gateway functionality and obtain signatures for attacker-controlled payloads.
The vulnerability exists due to improper access control in multiple Splunk Secure Gateway REST API endpoints when processing requests without enforcing authorization requirements. A remote user can submit attacker-controlled payloads to the affected endpoints to access privileged Splunk Secure Gateway functionality and obtain signatures for attacker-controlled payloads.
Exploitation does not require the admin or power Splunk roles.
Affected software
Splunk Secure Gateway
Splunk Enterprise
Splunk Enterprise
How to mitigate CVE-2026-76265
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