CVE-2026-27803: Dani-Garcia Vaultwarden

High severity, CVSS 8.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. 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 has been patched in version 1.35.4.

Affected products

• Dani-Garcia Vaultwarden: before 1.35.4 (fixed in 1.35.4)

Published 2026-03-04. Last modified 2026-06-17.