Server-side Request Forgery (SSRF) Affecting zeep package, versions [4.0.0,4.3.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-ZEEP-17675232
- published29 Jun 2026
- disclosed19 Jun 2026
- creditUnknown
Introduced: 19 Jun 2026
CVE-2026-58501 (opens in a new tab)How to fix?
Upgrade zeep to version 4.3.3 or higher.
Overview
zeep is an A Python SOAP client
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the process of parsing WSDL or XSD documents, where transitive references such as xsd:import, xsd:include, wsdl:import, and lxml entity/DTD resolution are followed. An attacker can cause the application to make outbound requests to arbitrary URLs by supplying or influencing the contents of a WSDL/XSD document, potentially accessing internal-only services or sensitive endpoints.
Workaround
This vulnerability can be mitigated by avoiding the loading of untrusted WSDL/XSD documents, vendoring schemas locally and loading them from local files, restricting egress at the network layer to block outbound traffic to sensitive ranges, or using a restrictive custom Transport to allow-list URLs.