{"id":"CVE-2026-48099","summary":"WsgiDAV encoded dot segments can escape filesystem share roots","details":"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.","aliases":["GHSA-wxq4-cc2q-338q","PYSEC-2026-3428"],"modified":"2026-08-16T03:31:25.311294898Z","published":"2026-08-13T19:15:01.942Z","database_specific":{"cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48099.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48099.json"},{"type":"ADVISORY","url":"https://github.com/mar10/wsgidav/security/advisories/GHSA-wxq4-cc2q-338q"},{"type":"ADVISORY","url":"https://github.com/pypa/advisory-database/tree/main/vulns/wsgidav/PYSEC-2026-3428.yaml"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48099"},{"type":"FIX","url":"https://github.com/mar10/wsgidav/commit/f894ed8656d7bdd7438ab8148c5a02546cb15183"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mar10/wsgidav","events":[{"introduced":"0"},{"fixed":"f894ed8656d7bdd7438ab8148c5a02546cb15183"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"4.3.4"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v4.3.2","v4.3.1","v4.3.0","v4.2.0","v4.1.0","v4.0.1","v4.0.0","v4.0.0-a2","v3.1.1","v3.1.0","v3.0.5-a3","v3.0.5-a2","v3.0.5-a1","v3.0.3","v3.0.2","v3.0.1","v3.0.0a6","v3.0.0a5","v3.0.0a4","v3.0.0a2","v3.0.0a1","v2.3.0","v2.2.4","v2.2.2","v2.2.1","v2.1.0","v2.0.1","v2.0.0","v1.3.0","v1.2.0","1.1.0","1.0.0","0.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48099.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L"}]}