CVE-2026-27801 Vaultwarden: 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwardenrs. Vaultwarden versions 1.34.3 and prior are susceptible to a 2FA bypass when performing protected actions. An attacker who gains authenticated access to a user’s account can exploit this bypass ...