CVE-2026-43638

Bitwarden Server before 2026.4.1 contains a missing authorization vulnerability that lets any authenticated user write ciphers into an arbitrary organization via POST /ciphers/import-organization by submitting an empty collections array, bypassing the server-side permission check. Affected produc...

CVE-2026-43639

Bitwarden Server prior to v2026.4.0 is affected by a missing authorization vulnerability that allows a provider service user to add an arbitrary organization to their provider via POST /providers/{providerId}/clients/existing, resulting in takeover of the target organization. The issue is restric...

CVE-2026-57520

Bitwarden Server prior to 2026.5.0 is affected by a privilege-escalation vulnerability in the bulk user-remove endpoint. The issue arises from a missing role hierarchy check, allowing authenticated Custom users with ManageUsers permission to remove Admin accounts from an organization by supplying...

CVE-2026-43640

Bitwarden Server (affected: v2026.4.1 and earlier) contains an authentication bypass for SCIM API key retrieval/rotation. A logged-in user with SCIM management privileges can obtain the organization's SCIM API key without re-authenticating the master password, exposing sensitive credentials. Root...

CVE-2026-57521

Bitwarden Server (pre-2026.5.0) has a broken access control in PreviewInvoiceController: any authenticated user can supply an arbitrary organizationId to access that organization’s billing data without membership checks. The issue stems from the missing ManageOrganizationBillingRequirement on the...

CVE-2026-57522

CVE-2026-57522 affects Bitwarden Server prior to 2026.5.0. The vulnerability is a JSON injection in IntegrationTemplateProcessor.ReplaceTokens(), which inserts user-controlled values into event-integration templates without JSON encoding. If an organization uses an event integration whose templat...