CVE-2026-27802CWE-269CWE-863

Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager

High · published March 4, 2026

CVSS v3.1
8.3
EPSS
0%
Percentile
32.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00397 · 32.7th percentile
Weaknesses
CWE-269 · Improper Privilege Management; CWE-863 · Incorrect Authorization
Published
2026-03-04T21:34Z
EPSS history
Timeline
  • 04 MAR 21:34Z
    Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager
    cvelistv5