CVE-2026-27803

A flaw was found in Vaultwarden. An authenticated manager, even when explicitly denied management privileges for a collection, could still perform various unauthorized management operations on that collection. This improper access control could lead to unauthorized information disclosure and data...

CVE-2026-27803 Vaultwarden: Collection Management Operations Allowed Without `manage` Verification for Manager Role

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwardenrs. Prior to version 1.35.4, when a Manager has manage=false for a given collection, they can still perform several management operations as long as they have access to the collection. This issue...