CVE-2026-43914

Katalog CVE

CVSS 9.8 · Critical EPSS 0,49%

Kerentanan Improper Restriction of Excessive Authentication Attempts pada dani-garcia vaultwarden. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

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 send_email_login (email.rs, api endpoint /api/two-factor/send-email-login) also acts as an oracle determining whether a username-password combination is correct. An attacker can abuse that endpoint to brute-force passwords without rate-limiting. This works even for users who don't have email 2fa configured. This vulnerability is fixed in 1.35.4.

Rincian

Terbit di NVD

11 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-307: Improper Restriction of Excessive Authentication Attempts

EPSS (30 hari)

0,49% peluang dieksploitasi; lebih tinggi dari 40,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-c5rv-q295-7w4g exploit · patch · advisory vendor
• https://github.com/dani-garcia/vaultwarden/pull/6867 issue tracking · patch
• https://github.com/dani-garcia/vaultwarden/releases/tag/1.35.4 product · release notes