CVE-2026-27966 – Langflow has Remote Code Execution in CSV Agent

CVE ID : CVE-2026-27966

Published : Feb. 26, 2026, 2:16 a.m. | 52 minutes ago

Description : Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes `allow_dangerous_code=True`, which automatically exposes LangChain’s Python REPL tool (`python_repl_ast`). As a result, an attacker can execute arbitrary Python and OS commands on the server via prompt injection, leading to full Remote Code Execution (RCE). Version 1.8.0 fixes the issue.

Severity: 9.8 | CRITICAL

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