---
id: CVE-2026-77780
title: >-
  Authorization Bypass Through User-Controlled Key in the transaction save
  endpoint in Roskus

  Prospero Flow CRM 4.9.1 through 5.14.0 allows a user with transaction and
  accounting

  creation permissions to disclose another company's bank acco…
summary: >-
  Authorization Bypass Through User-Controlled Key in the transaction save
  endpoint in Roskus

  Prospero Flow CRM 4.9.1 through 5.14.0 allows a user with transaction and
  accounting

  creation permissions to disclose another company's bank acco…
severity: none
cwe:
  - CWE-639
published: '2026-08-21'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:10:00.173'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77780'
references:
  - url: >-
      https://github.com/Roskus/prospero-flow-crm/commit/5fd1fe862bbdcbacf5d7e05c1c123981d8809674
    label: 4daa8cea-433a-44bd-9456-53b127fc289a
  - url: 'https://github.com/Roskus/prospero-flow-crm/pull/261'
    label: 4daa8cea-433a-44bd-9456-53b127fc289a
  - url: >-
      https://secur0.com/en/cna/cve-list/cve-2026-77780-idor-unvalidated-bank-foreign-keys-prospero-transaction-save
    label: 4daa8cea-433a-44bd-9456-53b127fc289a
tags:
  - nvd
epss: 0.00439
epssPercentile: 0.3656
ingestedAt: '2026-10-15T19:25:46.351Z'
---

## Overview

Authorization Bypass Through User-Controlled Key in the transaction save endpoint in Roskus
Prospero Flow CRM 4.9.1 through 5.14.0 allows a user with transaction and accounting
creation permissions to disclose another company's bank account name, bank name and card
last four digits via a bank_account_id or bank_card_id belonging to that company in POST
/transaction/save, which is persisted and rendered without any company ownership check.

## Remediation

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