---
id: CVE-2026-100623
title: >-
  Capgo (capgo.app) exposes the legacy membership table public.org_users
  directly through Supabase PostgREST
summary: >-
  Capgo (capgo.app) exposes the legacy membership table public.org_users
  directly through Supabase PostgREST. The table's row-level security policies
  "Allow org admin to insert" and "Allow org admin to update" only verify that
  the caller h…
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-863
vendor: Cap-go
product: capgo.app
affected:
  - capgo.app
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T14:16:43.293'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100623'
references:
  - url: >-
      https://github.com/Cap-go/capgo.app/security/advisories/GHSA-w349-9mc3-8c5x
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/capgo-authentication-bypass-via-direct-postgrest-org-users-table-write
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-26T13:33:20.927Z'
---

## Overview

Capgo (capgo.app) exposes the legacy membership table public.org_users directly through Supabase PostgREST. The table's row-level security policies "Allow org admin to insert" and "Allow org admin to update" only verify that the caller has admin rights in the target organization (public.check_min_rights('admin', ...)); they do not require a pending invitation in tmp_users, acceptance of an invite token via /private/accept_invitation, any action by the target user, or the membership/role-consistency and anti-escalation checks enforced by the RBAC role-binding path. As a result, an authenticated user who is an admin of an organization can INSERT or UPDATE org_users rows directly to add any existing public.users account as an active member of that organization with user_right="admin", bypassing the invitation and role-assignment workflow entirely. In testing, an account with no prior access to the organization or its apps could, after such a direct insert, read the organization and app and pass check_min_rights. All versions are affected and no patch was available at the time of publication.

## Remediation

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