Vulnerability · Published Mar 4, 2026 · Assigned by GitHub_M
CVE-2026-27802Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager
High 8.3
In plain English
A high-severity privilege mismanagement in vaultwarden from dani-garcia. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.3%top 72.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dani-garcia | vaultwarden | < 1.35.4 |
Weakness: CWE-269, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L