Improper privilege management in Splunk Enterprise - CVE-2026-76259
Published: August 20, 2026
Vulnerability identifier: #VU144437
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-76259
CWE-ID: CWE-269
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to improper privilege management in the Windows management-port listener when the Splunk Enterprise service starts. A local user can bind to the management port before Splunk Enterprise starts to intercept authentication tokens from child processes.
Exploitation requires access to the Windows host.
Affected software
Splunk Enterprise
How to mitigate CVE-2026-76259
Install security update from vendor's website.
Splunk Enterprise - addressed in versions 9.4.14, 10.0.9, 10.2.6, 10.4.2