CVE-2026-53711

The MCP Context Forge MCP Admin UI is vulnerable to stored cross-site scripting (XSS) in versions 0.2.0 through 0.3.1 . The root cause is insufficient output encoding when the Global Prompts feature stores and subsequently renders prompt templates. An authenticated attacker can save markup contai...

PYSEC-2026-3862 mcp-contextforge-gateway has RestrictedPython sandbox bypass via getattr builtin in python_sandbox_server

Commit: f855e54d5b7bc1c91b977574a03b91eff6b86bb6 Component: mcp-servers/python/pythonsandboxserver/src/pythonsandboxserver/serverfastmcp.py Vulnerability RestrictedPython's sandbox in ContextForge's pythonsandboxserver sub-project allows arbitrary Python execution via three compounding weaknesses...

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

Summary mcpgateway.services.promptservice.PromptService renders user-supplied prompt templates using Jinja2's plain Environment rather than SandboxedEnvironment. An authenticated user with permission to register or update prompt templates can store a malicious template that, on subsequent...

GHSA-VWF3-4XXJ-QG6H mcp-contextforge-gateway has Server-Side Template Injection (SSTI) leading to Remote Code Execution in `PromptService._render_template` via unsandboxed Jinja2 Environment

Summary mcpgateway.services.promptservice.PromptService renders user-supplied prompt templates using Jinja2's plain Environment rather than SandboxedEnvironment. An authenticated user with permission to register or update prompt templates can store a malicious template that, on subsequent...

Improper Neutralization of Special Elements Used in a Template Engine

Overview mcp-contextforge-gateway is a ContextForge AI Gateway — an AI gateway, registry, and proxy for MCP, A2A, and REST/gRPC APIs. Exposes a unified control plane with centralized governance, discovery, and observability. Optimizes agent and tool calling, and supports plugins. Affected version...

GHSA-XM98-3VCF-FPH7 mcp-contextforge-gateway has RestrictedPython sandbox bypass via getattr builtin in python_sandbox_server

Commit: f855e54d5b7bc1c91b977574a03b91eff6b86bb6 Component: mcp-servers/python/pythonsandboxserver/src/pythonsandboxserver/serverfastmcp.py Vulnerability RestrictedPython's sandbox in ContextForge's pythonsandboxserver sub-project allows arbitrary Python execution via three compounding weaknesses...

mcp-contextforge-gateway has RestrictedPython sandbox bypass via getattr builtin in python_sandbox_server

Commit: f855e54d5b7bc1c91b977574a03b91eff6b86bb6 Component: mcp-servers/python/pythonsandboxserver/src/pythonsandboxserver/serverfastmcp.py Vulnerability RestrictedPython's sandbox in ContextForge's pythonsandboxserver sub-project allows arbitrary Python execution via three compounding weaknesses...

Protection Mechanism Failure

Overview mcp-contextforge-gateway is a ContextForge AI Gateway — an AI gateway, registry, and proxy for MCP, A2A, and REST/gRPC APIs. Exposes a unified control plane with centralized governance, discovery, and observability. Optimizes agent and tool calling, and supports plugins. Affected version...

Server-side Request Forgery (SSRF)

Overview mcp-contextforge-gateway is a ContextForge AI Gateway — an AI gateway, registry, and proxy for MCP, A2A, and REST/gRPC APIs. Exposes a unified control plane with centralized governance, discovery, and observability. Optimizes agent and tool calling, and supports plugins. Affected version...