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cve recordcritical

CVE-2026-76404

splunk · model context protocol server

Published
CVSS9.1
Severitycritical
WeaknessCWE-502
ExploitedNot in CISA KEV

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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.

References

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Our coverage of CVE-2026-76404

CVE-2026-19478high

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