CVE-2026-76259
HighCVSS 8.8Summary
In Splunk Enterprise for Windows versions below 10.4.2, 10.2.6, 10.0.9, 9.4.13, and 9.3.14, a local user with access to the Windows host could bind to the management port before Splunk Enterprise starts, intercept authentication tokens from child processes, and use those tokens to compromise all relevant data and system integrity available to the user account running Splunk Enterprise. The vulnerability is possible because the Windows management-port listener does not apply exclusive address binding protections before the service starts.
Risk Assessment
The risk includes authentication token interception and unauthorized data access, as well as system integrity compromise. The attack requires local host access but can lead to full compromise of the Splunk account.
Recommendation
Upgrade Splunk Enterprise for Windows to version 10.4.2, 10.2.6, 10.0.9, 9.4.13, or 9.3.14 or later. Also restrict local host access and monitor processes running before service startup.
Original NVD description (English source)
In Splunk Enterprise for Windows versions below 10.4.2, 10.2.6, 10.0.9, 9.4.13, and 9.3.14, a local user with access to the Windows host could bind to the management port before Splunk Enterprise starts, intercept authentication tokens from child processes, and use those tokens to compromise all relevant data and system integrity available to the user account running Splunk Enterprise. The vulnerability is possible because the Windows management-port listener does not apply exclusive address binding protections before the service starts.