---
id: CVE-2026-100607
title: >-
  Flowise through 3.1.4 resolves SSO and local-password users solely by email
  without storing provider or subject identifier bindings, allowing attackers to
  authenticate as any existing user by claiming their email at any configured
  SSO pr…
summary: >-
  Flowise through 3.1.4 resolves SSO and local-password users solely by email
  without storing provider or subject identifier bindings, allowing attackers to
  authenticate as any existing user by claiming their email at any configured
  SSO pr…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L'
cwe:
  - CWE-287
vendor: FlowiseAI
product: Flowise
affected:
  - Flowise <= 3.1.4
published: '2026-09-26'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T18:17:14.233'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100607'
references:
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-cffm-583c-vffr
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/flowise-through-3.1.4-authentication-bypass-via-email-only-sso
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-cffm-583c-vffr
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-28T17:07:19.926137Z'
ingestedAt: '2026-09-26T13:33:20.935Z'
epss: 0.00365
epssPercentile: 0.30127
---

## Overview

Flowise through 3.1.4 resolves SSO and local-password users solely by email without storing provider or subject identifier bindings, allowing attackers to authenticate as any existing user by claiming their email at any configured SSO provider. Attackers can gain complete account access including chatflows, credentials, and API keys by authenticating through a different SSO provider or local password than the victim's original registration method.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.