---
id: "CVE-2026-110309"
kind: "vulnerability"
aliases: ["CVE-2026-110309"]
title: "Langflow: authenticated users can run arbitrary commands via code generation"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "ai-tooling"
products: []
ecosystems: []
tags: ["ai-apps", "ai-tooling", "langflow", "python", "self-hosted"]
not_affected_if: ["managed-hosting", "version-outside-range"]
published_at: "2026-10-29T16:17:57+00:00"
first_seen_at: "2026-10-29T16:25:56+00:00"
updated_at: "2026-10-29T16:29:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110309", "first_seen_at": "2026-10-29T16:25:56+00:00"}]
---

# Langflow: authenticated users can run arbitrary commands via code generation

IBM Langflow OSS versions 1.0.0 through 1.12.4 let a logged-in user run arbitrary operating system commands on the server. The flaw comes from improper control of code generation, so a crafted request is turned into code that the server executes.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Langflow version (for example `pip show langflow`, or the image tag if run in Docker) and see whether it falls in `1.0.0` through `1.12.4`.
- Confirm whether the instance is reachable from outside the network and who holds an account on it.

## Fix

- Move Langflow OSS to a version later than `1.12.4`; the sources do not name the exact fixed release.

## Timeline

- 2026-10-29T16:25:56+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-110309

## From the sources

IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to execute arbitrary commands due to improper control of code generation.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_