{"id":"CVE-2026-58501","aliases":["GHSA-4cc2-g9w2-fhf6","PYSEC-2026-2323"],"url":"https://o3.security/vulnerability/CVE-2026-58501","summary":"Zeep SSRF because Settings.forbid_external is not enforced","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.","published":"2026-07-08T19:31:55.937Z","modified":"2026-08-12T03:51:41.585931023Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.00408,"percentile":0.34337,"asOf":"2026-09-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"zeep","fixedVersion":"4.3.3"}],"fix":{"url":"https://github.com/mvantellingen/python-zeep/commit/83eb07bc6c84d841329d4f88856fecdba86f753e","label":"mvantellingen/python-zeep@83eb07b"},"references":[{"type":"WEB","url":"https://github.com/mvantellingen/python-zeep/releases/tag/4.3.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58501.json"},{"type":"ADVISORY","url":"https://github.com/mvantellingen/python-zeep/security/advisories/GHSA-4cc2-g9w2-fhf6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58501"},{"type":"FIX","url":"https://github.com/mvantellingen/python-zeep/commit/83eb07bc6c84d841329d4f88856fecdba86f753e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:41.585931023Z"}}