Findings

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.

  1. 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.

  2. 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

References

CVE-2026-27966 · ZeroDay Findings