Vulnerability in Dani-Garcia Vaultwarden
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Dani-Garcia Vaultwarden — versions < 1.35.0
Weakness classification (CWE)
References
- github.com/dani-garcia/vaultwarden/security/advisories/GHSA-v6pg-v89r-w8wr (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-27801?
- CVE-2026-27801 is a medium-severity vulnerability in Dani-Garcia Vaultwarden, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 5.9/10. Published 2026-03-04.
- How severe is CVE-2026-27801?
- Medium severity. CVSS v3 base score is 5.9 out of 10.