There was a missing permission-check in the shares feature (the shr global-option).
This vulnerability only applies in the following scenario:
sftp-pw global-option was also enabledGiven these conditions, when a user is browsing a share through either FTP or SFTP (not http or https), they can gain read-access to the remaining files inside the shared folder by guessing/bruteforcing the filenames.
It was not possible to descend into subdirectories in this manner; only the sibling files were accessible.
This issue did not affect filekeys or dirkeys.
This vulnerability is CVE-2025-58753 which was previously fixed for HTTP and HTTPS, but not for FTP. The FTPS server did not yet exist at that time.
{
"cwe_ids": [
"CWE-863"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-12T14:22:46Z",
"nvd_published_at": "2026-03-11T21:16:16Z",
"severity": "LOW"
}