CVE-2026-33420CWE-862

Vaultwarden missing authorization check allows Manager-role users to enumerate all collections

Medium · published May 5, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
19.8
In the wild
Unconfirmed
What it is

Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_collections_details endpoint (GET /api/organizations/{org_id}/collections/details) is missing the has_full_access() authorization check that exists on the sibling get_org_collections endpoint. This allows any Manager-role user with accessAll=False and no collection assignments to retrieve the names, UUIDs, user-to-collection mappings, and group-to-collection mappings for all collections in the organization. This issue has been fixed in version 1.35.5.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00284 · 19.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-05-05T19:12Z
EPSS history
Timeline
  • 05 MAY 19:12Z
    Vaultwarden missing authorization check allows Manager-role users to enumerate all collections
    cvelistv5