CVE-2026-114437 Affecting github-mcp-server package, versions <2.0.3-r2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-WOLFILATEST-GITHUBMCPSERVER-21707368
  • published25 Oct 2026
  • disclosed21 Oct 2026

Introduced: 21 Oct 2026

NewCVE-2026-114437  (opens in a new tab)

How to fix?

Upgrade Wolfi github-mcp-server to version 2.0.3-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream github-mcp-server package and not the github-mcp-server package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

In the Golang Chi web framework, the ClientIPFromXFF middleware skips any X-Forwarded-For entry in a configured trusted CIDR but never verifies that the direct TCP peer in http.Request.RemoteAddr belongs to that CIDR. A client that can reach the Go server directly can therefore append a trusted-looking proxy address and choose the client IP returned by middleware.GetClientIP.

This issue affects chi before 5.4.0.

CVSS Base Scores

version 3.1