CVE-2026-57521
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk11th percentile — higher than 11% of all known CVEs
Summary
A broken access control vulnerability in Bitwarden Server before 2026.5.0 allows any authenticated user to access arbitrary organization billing data by supplying an arbitrary organizationId to the PreviewInvoiceController endpoints without membership or authorization checks.
Risk Assessment
Attackers can retrieve Stripe-computed tax totals, subscription status, and billing details derived from any target organization's real customer and subscription data, leading to data exposure and potential compliance violations.
Recommendation
Upgrade Bitwarden Server to version 2026.5.0 or later, which fixes the missing authorization check on preview invoice endpoints.
Original NVD description (English source)
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.