CVE-2026-27801

Vaultwarden: 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement

Published: Mar 4, 2026Updated: Mar 5, 2026 Sources: CVE List NVD GHSACWE-307

N/ACVSS

NVD MITRE

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.

No summary for this CVE yet.

Weaknesses

CWE-307

Affected Products

dani-garcia

oss-projectaka vaultwarden

vaultwardenOn-prem

Security Products / identity-access-mgmt

crates.io

package-ecosystem

vaultwarden

OSS Libraries

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Credential Access

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References

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

github.com

https://nvd.nist.gov/vuln/detail/CVE-2026-27801

nvd.nist.gov

https://github.com/dani-garcia/vaultwarden

github.com

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