CVE-2026-90927
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Sep 14, 2026
Vendor
unknown
Description
filebrowser through 2.63.23 fails to limit WebSocket message size in the /api/command handler before checking permissions, allowing authenticated users to buffer arbitrarily large messages. Attackers can send oversized WebSocket messages to exhaust server heap memory and cause denial of service regardless of EnableExec setting or Execute permission.