Langflow AI Authentication Bypass

Langflow versions 1.5.0 through 1.11.4 allow unauthenticated connections to the MCP SSE endpoint, allowing attackers to initialize MCP sessions and retrieve privileged MCP-related information. The MCP information collected from this module is stored in Metasploit loot as a JSON document. Module...

GHSA-5GM3-9CRP-6G3V Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Summary A malicious website can use DNS rebinding to control a developer's local process-compose MCP SSE listener when MCP SSE is enabled. The vulnerable path accepts browser-origin requests before any Host validation, Origin validation, or caller-secret check, then dispatches the requests into...

Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Summary A malicious website can use DNS rebinding to control a developer's local process-compose MCP SSE listener when MCP SSE is enabled. The vulnerable path accepts browser-origin requests before any Host validation, Origin validation, or caller-secret check, then dispatches the requests into...

CVE-2026-77339

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339 Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339 Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339

Process Compose (a scheduler and orchestrator for non-containerized applications) had a vulnerability in its MCP SSE listener (src/mcp/server.go) prior to version 1.120.0 . The listener accepted browser-origin requests to /sse and the returned message endpoint without validating the Host or Origi...

CVE-2026-77339

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

CVE-2026-77339 Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools

Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or...

PT-2026-95497

Name of the Vulnerable Software and Affected Versions Process Compose versions prior to 1.120.0 Description Process Compose is a scheduler and orchestrator for non-containerized applications. The MCP SSE listener in src/mcp/server.go accepts browser-origin requests to the /sse endpoint and the...

CVE-2026-57123

PraisonAI (praisonaiagents), a multi-agent teams system, is affected in its MCP SSE transport (ToolsMCPServer.run_sse() / launch_tools_mcp_server(transport="sse")). The server binds to 0.0.0.0 by default and builds its Starlette app without authentication middleware or Origin-header validation. T...

CVE-2026-57123 PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59, ToolsMCPServer.runsse and launchtoolsmcpserver bind to 0.0.0.0 and create /sse and /messages/ routes without invoking the available SecurityConfig authentication, origin-validation, or DNS-rebinding controls. Any reachable...

CVE-2026-57123 PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59, ToolsMCPServer.runsse and launchtoolsmcpserver bind to 0.0.0.0 and create /sse and /messages/ routes without invoking the available SecurityConfig authentication, origin-validation, or DNS-rebinding controls. Any reachable...

CVE-2026-57123 PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59, ToolsMCPServer.runsse and launchtoolsmcpserver bind to 0.0.0.0 and create /sse and /messages/ routes without invoking the available SecurityConfig authentication, origin-validation, or DNS-rebinding controls. Any reachable...

Chainlist has SSRF via MCP SSE and streamable-http transports that allows unauthenticated internal network access

Am I affected?Only if your deployment sets features.mcp.enabled = true in .chainlit/config.toml. MCP has been disabled by default since v2.7.0, so most Chainlit deployments are not affected. No authentication is required: /mcp is reachable by any client that can open a session. SummaryWhen MCP is...

EUVD-2026-65738

Chainlit is a Python framework for building production-ready conversational AI applications. From 2.4.0rc0 until 2.12.0, Chainlit deployments with features.mcp.enabled set to true in .chainlit/config.toml expose the POST /mcp endpoint without requiring authentication. For sse and streamable-http...

PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in

The MCP SSE server started via ToolsMCPServer.runsse / launchtoolsmcpservertransport="sse"binds to 0.0.0.0 by default and builds its Starlette application with no authentication middlewareand no Origin-header validation. The module mcp/mcpsecurity.py provides exactly the needed controlsorigin...

CVE-2026-46701

Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.4.5, the MCP SSE server defaults to an empty secret process.env'NETWORKAIMCPSECRET' ?? '' at bin/mcp-server.ts:89, which causes isAuthorized lib/mcp-transport-sse.ts:254 to return true unconditionally for every reques...

CVE-2026-46701

Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.4.5, the MCP SSE server defaults to an empty secret "process.env'NETWORKAIMCPSECRET' ?? ''" at "bin/mcp-server.ts:89", which causes "isAuthorized" "lib/mcp-transport-sse.ts:254" to return "true" unconditionally for...

CVE-2026-46701: Origin Validation Error

Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.4.5, the MCP SSE server defaults to an empty secret process.env'NETWORKAIMCPSECRET' ?? '' at bin/mcp-server.ts:89, which causes isAuthorized lib/mcp-transport-sse.ts:254 to return true unconditionally for every reques...