PYSEC-2026-330 EPyT-Flow vulnerable to unsafe JSON deserialization (__type__)

Impact EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field. When type is present, the deserializer dynamically imports an attacker-specified module/class and instantiates it with attacker-supplied arguments. Thi...

CVE-2026-25632

EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water distribution networks. Prior to 0.16.1, EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field...

CVE-2026-25632

EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water distribution networks. Prior to 0.16.1, EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field...

CVE-2026-25632

EPyT-Flow (Python) prior to version 0.16.1 is affected by a deserialization vulnerability in its REST API. The issue stems from a custom deserializer (my_load_from_json) that honors a type field, allowing attacker-supplied module/class imports and instantiation during JSON parsing, which can trig...

CVE-2026-25632 EPyT-Flow has unsafe JSON deserialization (__type__)

EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water distribution networks. Prior to 0.16.1, EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field...

CVE-2026-25632 EPyT-Flow has unsafe JSON deserialization (__type__)

EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water distribution networks. Prior to 0.16.1, EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field...

CVE-2026-25632

EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water distribution networks. Prior to 0.16.1, EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field...

EUVD-2026-5576

EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water distribution networks. Prior to 0.16.1, EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field...

CVE-2026-25632: Deserialization of Untrusted Data

EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water distribution networks. Prior to 0.16.1, EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field...

EPyT-Flow code issue vulnerabilities

EPyT-Flow is an open-source Python package developed by ERC Synergy Grant Water Futures, designed for generating hydraulic and water quality scenario data for water distribution networks. Versions of EPyT-Flow prior to 0.16.1 contained code vulnerabilities. These vulnerabilities stemmed from the...

Deserialization of Untrusted Data

Overview epyt-flow is an EPyT-Flow -- EPANET Python Toolkit - Flow Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the type parameter in myloadfromjson. An attacker can execute arbitrary code by supplying a malicious JSON body containing a type field that...

GHSA-74VM-8FRP-7W68 EPyT-Flow vulnerable to unsafe JSON deserialization (__type__)

Impact EPyT-Flow’s REST API parses attacker-controlled JSON request bodies using a custom deserializer myloadfromjson that supports a type field. When type is present, the deserializer dynamically imports an attacker-specified module/class and instantiates it with attacker-supplied arguments. Thi...

PT-2026-6657

Name of the Vulnerable Software and Affected Versions EPyT-Flow versions prior to 0.16.1 Description EPyT-Flow is a Python package used for generating hydraulic and water quality scenario data for water distribution networks. The REST API parses attacker-controlled JSON request bodies using a...