---
id: CVE-2026-69255
title: >-
  Flowise is a drag & drop user interface to build a customized large language
  model flow
summary: >-
  Flowise is a drag & drop user interface to build a customized large language
  model flow. Prior to 3.1.3, the CSVAgent in
  packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted
  attacker-controlled CSV data with file.split(',').po…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
vendor: flowiseai
product: flowise
affected:
  - flowise < 3.1.3
patched:
  - flowise 3.1.3
published: '2026-08-04'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T19:58:41.640'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-69255'
references:
  - url: >-
      https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c
    label: security-advisories@github.com
  - url: 'https://github.com/FlowiseAI/Flowise/pull/6499'
    label: security-advisories@github.com
  - url: 'https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-vmv7-4m6c-3cg5
    label: security-advisories@github.com
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-vmv7-4m6c-3cg5
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-vmv7-4m6c-3cg5'
tags:
  - nvd
  - ghsa
  - npm
epss: 0.00602
epssPercentile: 0.47519
aliases:
  - GHSA-vmv7-4m6c-3cg5
ecosystem: npm
ingestedAt: '2026-08-04T16:40:31.908Z'
---

## Overview

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent in packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted attacker-controlled CSV data with file.split(',').pop() and interpolated it directly into executable Python as base64_string = "${base64String}" before calling Pyodide. The validatePythonCodeForDataFrame() denylist only checked later LLM-generated code and did not validate this initial code block. An authenticated attacker could inject a closing quote followed by Python code, use Pyodide's js bridge to load Node.js child_process, and execute arbitrary operating system commands as root in the Flowise container. This issue is fixed in version 3.1.3.

## Affected

- `flowise < 3.1.3`

## Remediation

Upgrade past the affected range:

- `flowise 3.1.3`

## Package advisory (CVE-2026-69255)

Affected packages:

- `flowise <= 3.1.2`
- `flowise-components <= 3.1.2`

Patched in:

- `flowise 3.1.3`
- `flowise-components 3.1.3`

Source: https://github.com/advisories/GHSA-vmv7-4m6c-3cg5