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.
CVE-2026-58501
MEDIUMPre-NVD 5.95.9
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 5.9 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: cna:github_m
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: —CVSS: 5.9Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.9
- EG Score
- 5.9(low)
- EPSS
- —
- KEV
- Not listed
Published
July 8, 2026
Last Modified
July 8, 2026
Advisory Details (3)
Auto-updated Jul 8, 2026Patch available. Sources: github_commit, github_release, github.
github Patch Available
Server-Side Request Forgery (SSRF) in zeep · Advisory · mvantellingen/python-zeep · GitHub
https://github.com/mvantellingen/python-zeep/security/advisories/GHSA-4cc2-g9w2-fhf6github_release Patch Available
4.3.3
Patch available: mvantellingen/python-zeep 4.3.3
https://github.com/mvantellingen/python-zeep/releases/tag/4.3.3github_commit Patch Available
commit 83eb07bc6c84 (mvantellingen/python-zeep)
Patch available: mvantellingen/python-zeep 4.3.3 (contains commit 83eb07bc6c84)
https://github.com/mvantellingen/python-zeep/commit/83eb07bc6c84d841329d4f88856fecdba86f753eWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-08 19:46 UTCEG score recompute
- 2026-07-08 19:44 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-58501?
CVE-2026-58501 is a medium vulnerability published on July 8, 2026. 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…
When was CVE-2026-58501 disclosed?
CVE-2026-58501 was first published in the National Vulnerability Database on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-58501?
CVE-2026-58501 has a CVSS v3 base score of 5.9 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-58501?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58501, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-58501
Is Your Infrastructure Affected by CVE-2026-58501?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.