Vulnerability Report

CVE-2026-27801

Title: 2FA Bypass in Vaultwarden

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-27801.

CWE Category CWE-307

Published Date Mar 04, 2026

Modified Date Mar 06, 2026

Exploit Status Not Found

Score 6.0 CVSS v4.0

Exploit Probability (EPSS)

0.24%

Vulnerability Summary

CVE-2026-27801: 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.

Impacted Vendors

dani-garcia 1

Reference Links

https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-v6pg-v89r-w8wr

CVSS v4.0

Source Entity [email protected]

Severity MEDIUM

6.0

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1