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CVE-2026-48099

WsgiDAV encoded dot segments can escape filesystem share roots

HIGH

7.1

CVSS Score

Published: August 13, 2026 at 07:15 PM UTC

Updated: September 9, 2026 at 09:17 PM UTC

1 product affected across 1 vendorWsgiDAV

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Severity

HIGH7.1

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

WsgiDAV · MAR10

60%

v < 4.3.4

Affected range stops below 4.3.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRM

Source: cverecord

https://github.com/mar10/wsgidav/security/advisories/GHSA-wxq4-cc2q-338q

x_refsource_MISC

Source: cverecord

https://github.com/mar10/wsgidav/commit/f894ed8656d7bdd7438ab8148c5a02546cb15183

x_refsource_MISC

Source: cverecord

https://github.com/pypa/advisory-database/tree/main/vulns/wsgidav/PYSEC-2026-3428.yaml

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M

Attack Vector: NETWORK
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: LOW

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-22

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