Description
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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| bitwarden | server | < 2026.5.0 | 2026.5.0 |
Advisories 1
- WID-SEC-2026-2095 Bitwarden: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 25, 2026
References
- https://sanjokkarki.com.np/blog/bitwarden-preview-invoice-idor technical-description exploit
- server 2026.5.0 Release Notes release-notes
- https://github.com/bitwarden/server/pull/7583 issue-tracking patch
- https://github.com/bitwarden/server/commit/0a3d9f9deb7d407503207b0d0ca8f0165a890bee patch
- https://www.vulncheck.com/advisories/bitwarden-server-broken-access-control-via-previewinvoicecontroller third-party-advisory