CVE-2026-76404
In Splunk MCP Server app versions below 1.2.1, a user who holds the "admin" Splunk role could execute arbitrary commands on the underlying operating system. The vulnerability is possible because of missing input validation in the app's credential management component, which deserializes stored data without checking whether the content is of the expected type.
Published:Aug 19, 2026
Last Modified:Aug 24, 2026
EPS:Aug 19, 2026
EPSS Score:0.00561
CVSS Score:9.1
Affected Products
Vendor
Product
Action
Vendor
Splunk
Product
Model Context Protocol Server
Splunk
Model Context Protocol Server
Vendor
Splunk
Product
Splunk Mcp Server App
Splunk
Splunk Mcp Server App
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
