Bug 2515581 (CVE-2026-48099)

Summary: CVE-2026-48099 wsgidav: WsgiDAV: Filesystem path traversal via encoded dot segments
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in WsgiDAV, a WebDAV server. A remote attacker could exploit this vulnerability by sending a specially crafted WebDAV request path containing encoded parent-directory segments. This could allow the attacker to escape the configured filesystem share root, potentially leading to unauthorized access to sensitive files or directories outside the intended scope.
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Description OSIDB Bzimport 2026-08-13 19:34:23 UTC 
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.