mcp-contextforge-gateway has Server-Side Template Injection (SSTI) leading to Remote Code Execution in `PromptService...

Date Aug 25, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product PyPI · mcp-contextforge-gateway

High-risk advisory

Summary

mcp-contextforge-gateway has Server-Side Template Injection (SSTI) leading to Remote Code Execution in `PromptService._render_template` via unsandboxed Jinja2 Environment

Why it matters

GitHub has published a reviewed security advisory for mcp-contextforge-gateway. Prioritize it with other application dependency updates.

Operator check

Check whether mcp-contextforge-gateway is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

GitHub Advisory GHSA-vwf3-4xxj-qg6h Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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