filebrowser versions before 2.63.19 have a permission bypass vulnerability in the /api/resources endpoint. Specifically, the checksum query branch reads and returns file digests without enforcing the Perm.Download permission. This allows authenticated users without download rights to obtain content hashes of files within their scope, potentially confirming file contents or detecting changes. This issue is a partial fix of a previous vulnerability (CVE-2026-35606) and does not bypass scope or path authorization controls.