CVE-2026-27966

CVE-2026-27966 — Langflow 원격 코드 실행 스캐너 인증 전 라우트 인젝션 + 버텍스 인젝션 → 파이썬 코드 실행 개요 CVE-2026-27966 은 Langflow 1.8.0 이전 버전에서 발견된 심각도CVSS 9.8의 인증 전 원격 코드 실행 취약점입니다. 이 취약점은 CSV Agent 컴포넌트에 allowdangerouscode=True가 하드코딩되어 있어 LangChain의 pythonreplast 도구가 인증되지 않은 프롬프트 인젝션에 노출됨으로써 발생합니다. 또한 여러 API 엔드포인트에 적절한 인...

CVE-2026-105740

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution RCE on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exe...

CVE-2026-105699

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1, Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not authorize the resource URI supplied to resources/read. readresource forwarded the...

CVE-2026-105698

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.0.0 until 1.10.1, Langflow did not verify flow ownership in the deprecated POST /api/v1/build/flowid/vertices and POST /api/v1/build/flowid/vertices/vertexid handlers. Through version 1.7.1, an unauthenticated...

CVE-2026-105741

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol MCP configuration installation endpoint POST /api/v1/mcp/project/projectid/install allowed authenticated remote attackers to bypass th...

CVE-2026-105697

Langflow is a tool for building and deploying AI-powered agents and workflows. Before Langflow 1.10.3, the MCP stdio transport launched whatever command / args a user put in an MCP server configuration, with no allowlist and before 1.10.3 wrapped in bash -c "exec command ...". Any user able to...

CVE-2026-105741

The software Langflow (versions 1.5.0 through 1.10.3) is vulnerable to an IP spoofing issue within the Model Context Protocol (MCP) configuration installation endpoint (POST /api/v1/mcp/project/{project_id}/install). An authenticated remote attacker can bypass "local-only" access restrictions by ...

CVE-2026-105741 Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol MCP configuration installation endpoint POST /api/v1/mcp/project/projectid/install allowed authenticated remote attackers to bypass th...

CVE-2026-105741 Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol MCP configuration installation endpoint POST /api/v1/mcp/project/projectid/install allowed authenticated remote attackers to bypass th...

CVE-2026-105741 Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol MCP configuration installation endpoint POST /api/v1/mcp/project/projectid/install allowed authenticated remote attackers to bypass th...

CVE-2026-105740

Langflow versions prior to 1.9.0 are vulnerable to Remote Code Execution (RCE) via the MCP Stdio transport . An authenticated user can execute arbitrary OS commands because the user-supplied command field is passed directly to bash -c "exec {command}" without validation, allowlisting, or sandboxi...

CVE-2026-105740 Langflow: Authenticated RCE via MCP Stdio transport allows any user to execute arbitrary OS commands on the server

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution RCE on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exe...

EUVD-2026-92799

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution RCE on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exe...

CVE-2026-105740 Langflow: Authenticated RCE via MCP Stdio transport allows any user to execute arbitrary OS commands on the server

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution RCE on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exe...

CVE-2026-105740 Langflow: Authenticated RCE via MCP Stdio transport allows any user to execute arbitrary OS commands on the server

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution RCE on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exe...

CVE-2026-105699

Langflow versions 1.6.8 through 1.9.1 are vulnerable to an authenticated cross-project file disclosure due to unscscoped MCP resource handlers. The application validates project identifiers but fails to authorize the resource URI provided to resources/read. Consequently, an attacker can bypass pr...

CVE-2026-105699 Langflow: Authenticated Cross-Project File Disclosure via Unscoped MCP Resource Handlers

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1, Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not authorize the resource URI supplied to resources/read. readresource forwarded the...

CVE-2026-105699 Langflow: Authenticated Cross-Project File Disclosure via Unscoped MCP Resource Handlers

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1, Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not authorize the resource URI supplied to resources/read. readresource forwarded the...

CVE-2026-105699 Langflow: Authenticated Cross-Project File Disclosure via Unscoped MCP Resource Handlers

Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1, Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not authorize the resource URI supplied to resources/read. readresource forwarded the...

CVE-2026-105698

Langflow (versions 1.0.0 through 1.10.0) is vulnerable to cross-user flow access and unauthorized vertex execution due to a missing ownership check in deprecated handlers. Specifically, the POST /api/v1/build/{flow_id}/vertices and POST /api/v1/build/{flow_id}/vertices/{vertex_id} endpoints faile...