Description
Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO authorization flow did not bind the OAuth state parameter accepted by /connect/authorize to the initiating browser session, allowed attacker-controlled PKCE parameters, and left SsoAuth records intact after failed token exchange, allowing an unauthenticated attacker to induce IdP authentication and redeem tokens for a fully authenticated session. This issue is fixed in version 1.36.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| dani-garcia | vaultwarden | < 1.36.0 | — |
Advisories 1
- WID-SEC-2026-1600 Vaultwarden: Mehrere Schwachstellen ermöglichen Erlangen von Benutzerrechten BSI CERT-Bund (WID) · Jul 15, 2026