id: PYSEC-2026-2323
published: "2026-07-08T20:16:55.323Z"
modified: "2026-07-13T05:52:39.838266Z"
aliases:
- CVE-2026-58501
- GHSA-4cc2-g9w2-fhf6
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.
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: {}
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
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N