CVE-2026-27966
Langflow has Remote Code Execution in CSV Agent
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | langflow-ai |
| Product | langflow |
| Published | Feb 26, 2026 |
| Last Updated | Feb 28, 2026 |
Stay Ahead of the Next One
Get instant alerts for langflow-ai langflow
Be the first to know when new critical vulnerabilities affecting langflow-ai langflow are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
langflow-ai / langflow
< 1.8.0