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 bitwarden_rs. Vaultwarden versions 1.34.3 and prior are susceptible to a 2FA bypass w…
Published: 2026-03-04 · CVSS: 6.0 · CVSS 4.0
Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. 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 to perform protected actions such as accessing the user’s API key or deleting the user’s vault and organisations the user is an admin/owner of . This issue has been patched in version 1.35.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7