Insecure Default Initialization of Resource Affecting satellite/foreman-mcp-server-rhel9 package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.52% (42nd percentile)

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  • Snyk IDSNYK-RHEL7-SATELLITEFOREMANMCPSERVERRHEL9-14173353
  • published3 Dec 2025
  • disclosed2 Dec 2025

Introduced: 2 Dec 2025

CVE-2025-66416  (opens in a new tab)
CWE-1188  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 satellite/foreman-mcp-server-rhel9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream satellite/foreman-mcp-server-rhel9 package and not the satellite/foreman-mcp-server-rhel9 package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to version 1.23.0, tThe Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using FastMCP with streamable HTTP or SSE transport, and has not configured TransportSecuritySettings, a malicious website could exploit DNS rebinding to bypass same-origin policy restrictions and send requests to the local MCP server. This could allow an attacker to invoke tools or access resources exposed by the MCP server on behalf of the user in those limited circumstances. Note that running HTTP-based MCP servers locally without authentication is not recommended per MCP security best practices. This issue does not affect servers using stdio transport. This vulnerability is fixed in 1.23.0.

CVSS Base Scores

version 3.1