CVE-2026-48099: MAR10 Wsgidav

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

WsgiDAV is a generic and extendable WebDAV server based on WSGI. WsgiDAV 4.3.3 and prior can allow a WebDAV request path containing an encoded parent-directory segment to escape the configured filesystem share root in a specific path layout. The issue is fixed with version 4.3.4.

Affected products

• MAR10 Wsgidav: before 4.3.4 (fixed in 4.3.4)

Published 2026-08-13. Last modified 2026-09-09.