CVE-2026-48099
Received Received - Intake

Path Traversal in WsgiDAV

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: GitHub, Inc.

Description
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.

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-14
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-48099
EUVD
EUVD-2026-58224

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
wsgidav wsgidav to 4.3.4 (exc)
wsgidav wsgidav 4.3.4
wsgidav wsgidav From 0.4.0b1 (inc) to 4.3.3 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

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Executive Summary

WsgiDAV before 4.3.4 allows a WebDAV request path with an encoded parent-directory segment to escape the configured filesystem share root in specific path layouts. This means an attacker could access files outside the intended directory.

Detection Guidance

To detect this vulnerability, inspect WebDAV server configurations for filesystem-backed shares. Check if the server version is 4.3.3 or earlier. Test for path traversal by sending encoded parent-directory segments in requests like GET /%2e%2e/ or similar patterns. Monitor file access logs for unauthorized operations outside configured share roots.

Impact Analysis

An attacker could read sensitive files outside the WebDAV share root, leading to unauthorized data access. This may include configuration files, user data, or other restricted resources.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance violations if sensitive data is accessed.

Mitigation Strategies

Upgrade WsgiDAV to version 4.3.4 or later to address the path traversal vulnerability. Review WebDAV request paths for encoded parent-directory segments in your configuration.

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