CVE-2026-90927 — filebrowser through 2.63.23 Denial of Service via unbounded WebSocket message
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 lar…
Published: 2026-09-14 · CVSS: 7.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7