CVE-2026-43914: Improper Restriction of Excessive Authentication Attempts

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.4, there is a security vulnerability in Vaultwarden that allows bypassing the login brute-force protection if email 2fa is enabled. If email 2fa is enabled, the unprotected 2fa-function sendemaillogin email.rs, api endpoi...