Vulnerability · Published Mar 4, 2026 · Assigned by GitHub_M

CVE-2026-27801Vaultwarden: 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement

Medium 6.0

In plain English

A medium-severity security flaw in vaultwarden from dani-garcia. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 4.0)6.0Medium

Exploit odds (30 days)0.3%top 78.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
dani-garcia	vaultwarden	< 1.35.0

Weakness: CWE-307 · 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

References

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