CVE-2026-76404

critical · 9.1

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.

9.1

CVSS

0.7%

EPSS (exploit prob.)

55th

EPSS percentile

2026-08-19

Published

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

Weaknesses

CWE-502

Affected products

Vendor	Product	Affected versions
splunk	model_context_protocol_server	< 1.2.1

Check a specific version with /api/v1/cve/match.

References

https://advisory.splunk.com/advisories/SVD-2026-0808

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-76404