wid-sec-w-2026-0558
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Published 2026-03-01
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View on BSI CERT-Bund ↗
Langflow: Vulnerability allows Code execution
CVSS 9.8
CRITICAL
Risk Summary
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.
CVEs (1)
Affected Vendors
Open Source
Affected Products (2)
Open Source
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Langflow
<1.8.0
Open Source
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Langflow
1.8.0
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