CVE-2026-105740criticalCWE-78

CVE-2026-105740: fallo crítico en langflow-ai langflow

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

Publicada el · Actualizada el

28Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 9.9epss 0.6%
probabilidad de explotación
0.6%top 54% de las CVE
explotación observada
noninguna fuente lo reporta
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 "exec {command}" with zero validation, no allowlisting, and no sandboxing. The command executes immediately when the server list is fetched. Additionally, the env field allows arbitrary environment variable injection (e.g., LD_PRELOAD, PATH override). This vulnerability is fixed in 1.9.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Productos afectados
langflow-ai · langflow
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Referencias
https://github.com/langflow-ai/langflow/commit/efbc4a16e639409d938a4883463d27ef0bc637a0https://github.com/langflow-ai/langflow/pull/12290https://github.com/langflow-ai/langflow/security/advisories/GHSA-7w94-79vh-5mr2https://github.com/langflow-ai/langflow/security/advisories/GHSA-w794-rj3p-xv45