CVE-2026-27802 HIGH

CVE-2026-27802: Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager

Vendor Dani-Garcia
Product vaultwarden
Weakness CWE-269
Published March 4, 2026
Last update March 5, 2026
View on NVD All CVEs

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

What the vulnerability does

01Description

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, there is a privilege escalation vulnerability via bulk permission update to unauthorized collections by Manager. This issue has been patched in version 1.35.4.

Key dates

02Disclosure timeline

March 4, 2026 CVE published
March 5, 2026 Record updated