---
id: CVE-2026-57521
title: Bitwarden Server < 2026.5.0 Broken Access Control via PreviewInvoiceController
summary: >-
  Bitwarden Server before 2026.5.0 contains a broken access control
  vulnerability that allows any authenticated user to access arbitrary
  organization billing data by supplying an arbitrary organizationId to the
  PreviewInvoiceController end…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-862
vendor: bitwarden
product: server
affected:
  - server < 2026.5.0
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-26T13:21:03.930162Z'
exploitAvailable: true
published: '2026-06-25'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:06:32.101Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-57521'
references:
  - url: 'https://sanjokkarki.com.np/blog/bitwarden-preview-invoice-idor'
  - url: 'https://github.com/bitwarden/server/releases/tag/v2026.5.0'
    label: server 2026.5.0 Release Notes
  - url: 'https://github.com/bitwarden/server/pull/7583'
  - url: >-
      https://github.com/bitwarden/server/commit/0a3d9f9deb7d407503207b0d0ca8f0165a890bee
  - url: >-
      https://www.vulncheck.com/advisories/bitwarden-server-broken-access-control-via-previewinvoicecontroller
tags:
  - cve.org
  - exploit-available
epss: 0.0043
epssPercentile: 0.37473
ingestedAt: '2026-11-08T14:51:22.325Z'
---

## Overview

Bitwarden Server before 2026.5.0 contains a broken access control vulnerability that allows any authenticated user to access arbitrary organization billing data by supplying an arbitrary organizationId to the PreviewInvoiceController endpoints without membership or authorization checks. Attackers can exploit the missing ManageOrganizationBillingRequirement on the preview invoice endpoints to retrieve Stripe-computed tax totals, subscription status, and billing details derived from any target organization's real customer and subscription data.

## Affected

- `server < 2026.5.0`

## Remediation

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