---
id: CVE-2026-90533
title: >-
  Flowise before 3.1.4 contains a broken access control vulnerability in GET
  /api/v1/organizationuser that allows any authenticated organization member to
  retrieve the organization owner's full user record including bcrypt password
  hash an…
summary: >-
  Flowise before 3.1.4 contains a broken access control vulnerability in GET
  /api/v1/organizationuser that allows any authenticated organization member to
  retrieve the organization owner's full user record including bcrypt password
  hash an…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-862
vendor: flowiseai
product: flowise
affected:
  - flowise < 3.1.4
patched:
  - flowise 3.1.4
published: '2026-09-12'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T18:23:42.930'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90533'
references:
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fhxm-xxcx-g6x3
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/flowise-before-3.1.4-broken-access-control-via-organizationuser
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fhxm-xxcx-g6x3
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00335
epssPercentile: 0.24069
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T18:29:01.223297Z'
scores:
  nvd: 6.5
  cna: 6
ingestedAt: '2026-09-14T15:23:07.480Z'
---

## Overview

Flowise before 3.1.4 contains a broken access control vulnerability in GET /api/v1/organizationuser that allows any authenticated organization member to retrieve the organization owner's full user record including bcrypt password hash and temporary tokens. Attackers can query the endpoint with any user ID to obtain the owner's credential hash for offline cracking, enabling account takeover of the highest-privileged account.

## Affected

- `flowise < 3.1.4`

## Remediation

Upgrade past the affected range:

- `flowise 3.1.4`