CVE-2026-57521
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…
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- bitwarden/server
- Source
- disclosure@vulncheck.com
References
- https://github.com/bitwarden/server/commit/0a3d9f9deb7d407503207b0d0ca8f0165a890beePatch
- https://github.com/bitwarden/server/pull/7583Issue Tracking
- https://github.com/bitwarden/server/releases/tag/v2026.5.0Release Notes
- https://sanjokkarki.com.np/blog/bitwarden-preview-invoice-idorExploit, Patch, Third Party Advisory
- https://www.vulncheck.com/advisories/bitwarden-server-broken-access-control-via-previewinvoicecontrollerThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.