CVE-2026-48099

WsgiDAV encoded dot segments can escape filesystem share roots

State: Published
Severity: 7.1 High
Published: Aug 13, 2026
Updated: Aug 14, 2026
Reserved: May 20, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
wsgidavmar10	< 4.3.4Affected

References

https://github.com/mar10/wsgidav/security/advisories/GHSA-wxq4-cc2q-338q
https://github.com/mar10/wsgidav/commit/f894ed8656d7bdd7438ab8148c5a02546cb15183
https://github.com/pypa/advisory-database/tree/main/vulns/wsgidav/PYSEC-2026-3428.yaml

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