Incorrect Implementation of Authentication Algorithm Affecting satellite/foreman-mcp-server-rhel9 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-RHEL7-SATELLITEFOREMANMCPSERVERRHEL9-16336367
  • published1 May 2026
  • disclosed3 Apr 2026

Introduced: 3 Apr 2026

CVE-2026-27124  (opens in a new tab)
CWE-303  (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.

FastMCP is the standard framework for building MCP applications. Prior to version 3.2.0, while testing the GitHubProvider OAuth integration, which allows authentication to a FastMCP MCP server via a FastMCP OAuthProxy using GitHub OAuth, it was discovered that the FastMCP OAuthProxy does not properly validate the user's consent upon receiving the authorization code from GitHub. In combination with GitHub’s behavior of skipping the consent page for previously authorized clients, this introduces a Confused Deputy vulnerability. This issue has been patched in version 3.2.0.

CVSS Base Scores

version 3.1