Description
Bitwarden Server before 2026.6.0 does not verify that the email in a POST /auth-requests/admin-request body belongs to the authenticated caller, allowing a low-privileged organization member to obtain another user's vault key and a victim-scoped access token by creating a Trusted Device Encryption authentication request, bound to an attacker-controlled public key, that is readable from an unauthenticated endpoint once approved resulting in disclosure of the victim's vault key and account takeover.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
bitwarden server
Default version status: affected
0 to < 2026.6.0affected
pkg:github/bitwarden/serverReferences
- https://sanjokkarki.com.np/blog/bitwarden-vault-key-heist ↗
- https://github.com/bitwarden/server/releases#release-v2026.6.0 ↗
- https://github.com/bitwarden/server/pull/7615 ↗
- https://github.com/bitwarden/server/commit/dcf4c486b2b5bedecc03a48b427243328cc74a9a ↗
- https://www.vulncheck.com/advisories/bitwarden-server-authorization-bypass-via-admin-auth-request ↗