{"id":"PYSEC-2026-2323","details":"Zeep is a Python SOAP client. From 4.0.0 before 4.3.3, Settings.forbid_external is defined but not enforced when parsing WSDL or XSD documents, allowing transitive xsd:import, xsd:include, wsdl:import, and lxml entity or DTD references to fetch attacker-chosen HTTP or HTTPS URLs. This issue is fixed in version 4.3.3.","aliases":["CVE-2026-58501","GHSA-4cc2-g9w2-fhf6"],"modified":"2026-07-13T07:15:49.587927492Z","published":"2026-07-08T20:16:55.323Z","references":[{"type":"ADVISORY","url":"https://github.com/mvantellingen/python-zeep/releases/tag/4.3.3"},{"type":"FIX","url":"https://github.com/mvantellingen/python-zeep/commit/83eb07bc6c84d841329d4f88856fecdba86f753e"},{"type":"FIX","url":"https://github.com/mvantellingen/python-zeep/security/advisories/GHSA-4cc2-g9w2-fhf6"}],"affected":[{"package":{"name":"zeep","ecosystem":"PyPI","purl":"pkg:pypi/zeep"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.3.3"}]}],"versions":["4.0.0","4.1.0","4.2.0","4.2.1","4.3.0","4.3.1","4.3.2"],"ecosystem_specific":{},"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/zeep/PYSEC-2026-2323.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}