CVE-2026-76404

critical Splunk
CVSS v3 Base Score
9.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS Score
0.6%
Exploitation probability in 30 days
Top 56% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: August 19, 2026 (17 days ago)
Last Modified: August 24, 2026
Vendor: Splunk
Source: NVD

Description

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.

CWE

CWE-502

Affected Products

splunk model context protocol server

References

🔗 advisory.splunk.com