---
id: CVE-2026-69250
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 OAuth2 token refresh endpoint POST
  /api/v1/oauth2-credential/refresh/:credentialId is unauthenticated by design
  and performs a s…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
vendor: flowiseai
product: flowise
affected:
  - flowise < 3.1.3
patched:
  - flowise 3.1.3
published: '2026-08-04'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:03:30.460'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-69250'
references:
  - url: >-
      https://github.com/FlowiseAI/Flowise/commit/da8b251a9a4c59484ceaf6f71df7406aede7bef2
    label: security-advisories@github.com
  - url: 'https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-r745-8hwv-h473
    label: security-advisories@github.com
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-r745-8hwv-h473
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-r745-8hwv-h473'
tags:
  - nvd
  - ghsa
  - npm
epss: 0.00573
epssPercentile: 0.4493
aliases:
  - GHSA-r745-8hwv-h473
ecosystem: npm
ingestedAt: '2026-08-04T14:40:15.735Z'
---

## Overview

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the OAuth2 token refresh endpoint POST /api/v1/oauth2-credential/refresh/:credentialId is unauthenticated by design and performs a server-side HTTP request to the credential-controlled accessTokenUrl without SSRF protections. Runtime validation confirmed that the endpoint was reachable without authentication, triggered outbound POST requests to an attacker-controlled server, reflected the full remote response body to the caller through tokenInfo, and sent client_id, client_secret, grant_type=refresh_token, and refresh_token in the request body. 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-2026-69250)

Affected packages:

- `flowise <= 3.1.2`

Patched in:

- `flowise 3.1.3`

Source: https://github.com/advisories/GHSA-r745-8hwv-h473