CVE-2025-56405

HIGH

litmus mcp_server - Unauthenticated Improper Access Control via SSE Protocol

Title source: llm
STIX 2.1

Description

An issue was discovered in litmusautomation litmus-mcp-server thru 0.0.1 allowing unauthorized attackers to control the target's MCP service through the SSE protocol.

References (2)

Core 2

Scores

CVSS v3 7.5
EPSS 0.0030
EPSS Percentile 21.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-284 CWE-306
Status published
Products (1)
litmus/mcp_server 0.0.1
Published Sep 10, 2025
Tracked Since Feb 18, 2026