CVE-2026-48099WsgiDAV encoded dot segments can escape filesystem share roots
Updated under an hour ago ()
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It affects mar10 wsgidav. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mar10 wsgidav mar10:wsgidav (from the name) | before 4.3.4 | CNA record |
References
- https://github.com/mar10/wsgidav/security/advisories/GHSA-wxq4-cc2q-338qx-refsource-confirm
- https://github.com/mar10/wsgidav/commit/f894ed8656d7bdd7438ab8148c5a02546cb15183x-refsource-misc
- https://github.com/pypa/advisory-database/tree/main/vulns/wsgidav/PYSEC-2026-3428.yamlx-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.