CVE-2026-76355: Splunk

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In Splunk Enterprise 10.4 versions below 10.4.2, an unauthenticated user could retrieve the information contained in Edge Processor pipeline configurations through a Representational State Transfer (REST) API endpoint when Edge Processor is turned on. The vulnerability does not affect versions prior to 10.4. The vulnerability exists because the Edge Processor service endpoint lacks authentication controls. For more information see System architecture of the Edge Processor solution (https://help.splunk.com/en/splunk-enterprise/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/how-the-edge-processor-solution-works/system-architecture-of-the-edge-processor-solution) in the Splunk documentation.

Affected products

• Splunk Splunk: from 10.4.0, before 10.4.2 (fixed in 10.4.2)

Published 2026-08-19. Last modified 2026-08-26.