CVE-2026-33420
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
Vaultwarden version 1.35.4 and earlier is missing the has_full_access() authorization check on the get_org_collections_details endpoint (GET /api/organizations/{org_id}/collections/details), which exists on the sibling get_org_collections endpoint. This allows any Manager-role user with accessAll=False and no collection assignments to retrieve names, UUIDs, user-to-collection mappings, and group-to-collection mappings for all collections in the organization. The issue has been fixed in version 1.35.5.
Risk Assessment
Manager-role users can gain unauthorized access to sensitive collection information, including user and group mappings, violating the principle of least privilege.
Recommendation
Update Vaultwarden to version 1.35.5 or later, which includes the authorization fix.
Original NVD description (English source)
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.