CVE-2026-27966
Langflow is a tool for building and deploying AI-powered agents and workflows.
Published Feb 26, 2026 · updated Jun 17, 2026 · langflow langflow
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 , which automatically exposes LangChain’s Python REPL tool ( ). 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.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Feb 26, 2026 · NIST NVD
Detected
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 , which automatically exposes LangChain’s Python REPL tool ( ). 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.
Jun 17, 2026 · NIST NVD
Updated
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 , which automatically exposes LangChain’s Python REPL tool ( ). 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.
Affected
- cpe langflow/langflowversion unspecified
Sources
- NIST NVDVulnerability recordCVE-2026-27966
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 , which automatically exposes LangChain’s Python REPL tool ( ). As a result, an attacker can
nvd.nist.gov