CVE-2026-26012 MEDIUM

CVE-2026-26012: vaultwarden has Full Cipher Enumeration Ignoring Organization Collection Permissions

Vendor Dani-Garcia
Product vaultwarden
Weakness CWE-863 · Incorrect authorization
Published February 11, 2026
Last update February 12, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to 1.35.3, a regular organization member can retrieve all ciphers within an organization, regardless of collection permissions. The endpoint /ciphers/organization-details is accessible to any organization member and internally uses Cipher::find_by_org to retrieve all ciphers. These ciphers are returned with CipherSyncType::Organization without enforcing collection-level access control. This vulnerability is fixed in 1.35.3.

Key dates

02Disclosure timeline

February 11, 2026 CVE published
February 12, 2026 Record updated