Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

SummaryBefore 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 reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

PYSEC-2026-4237 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Summary 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 reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

SummaryBefore 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 reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

PYSEC-2026-4239 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Summary 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 reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

PYSEC-2026-4241 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Summary 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 reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Summary 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 reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

GHSA-W794-RJ3P-XV45 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

Summary 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 reach the MCP server settings "Settings → MCP Servers → Add MCP Server",...

CVE-2026-105697 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

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-2026-105697 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

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-2026-105697

Langflow versions prior to 1.10.3 are vulnerable to OS command injection due to a lack of allowlisting in the MCP stdio transport configuration. An attacker capable of accessing MCP server settings or using the MCP Tools component can execute arbitrary OS commands (e.g., rm -rf, reverse shells) o...

CVE-2026-105697 Langflow: OS command injection (RCE) via arbitrary command in MCP stdio server configuration

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...

EUVD-2026-83658

A flaw has been found in aiyiyi121 SxDevOps 1.0/1.1. Affected is the function subprocess.Popen of the file backend/aiops/services.py of the component MCP STDIO Server Management. This manipulation of the argument endpointorcommand causes command injection. The attack may be initiated remotely...

CVE-2026-93965: Improper Neutralization of Special Elements used in a Command

A flaw has been found in aiyiyi121 SxDevOps 1.0/1.1. Affected is the function subprocess.Popen of the file backend/aiops/services.py of the component MCP STDIO Server Management. This manipulation of the argument endpointorcommand causes command injection. The attack may be initiated remotely...

PT-2026-95912

Name of the Vulnerable Software and Affected Versions aiyiyi121 SxDevOps versions 1.0 through 1.1 Description A command injection flaw exists in the MCP STDIO Server Management component within the subprocess.Popen function of the backend/aiops/services.py file. A remote attacker can exploit this...

CVE-2026-78575

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration...

CVE-2026-78575

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration...

CVE-2026-78575 Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration...

CVE-2026-78575 Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration...

CVE-2026-78575

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration...

CVE-2026-78575

IBM Langflow OSS 1.0.0–1.11.5 is vulnerable to OS command injection (CWE-78) in the MCP stdio server configuration , allowing a remote authenticated attacker to execute arbitrary commands. The root cause involves two gaps: the MCP stdio validator on Windows recognizes only one cmd.exe execution s...