CVE•Published 2026-08-19•Modified 2026-08-24•1 article on news•5 live references•NVD data
CVE-2026-76404Splunk · Model_context_protocol_server
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
44
Exploit Prediction Scoring System · top 56% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-08-19
Modified 2026-08-24
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-76404Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Splunk Model Context Protocol Server"All exposed Splunk Model Context Protocol Server instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Model Context Protocol Server"HTTP body or banner mentions "Model Context Protocol Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-76404Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-76404Censys host search filtered to this CVE id.
grep.app
CVE-2026-76404Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-76404GitHub code search for direct mentions.
Google dork
"CVE-2026-76404" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.