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 (my_load_from_json) 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. This allows invoking dangerous classes such as subprocess.Popen, which can lead to OS command execution during JSON parsing. This also affects the loading of JSON files. This vulnerability is fixed in 0.16.1.
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Fri, 06 Feb 2026 21:15:00 +0000
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| Description | 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 (my_load_from_json) 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. This allows invoking dangerous classes such as subprocess.Popen, which can lead to OS command execution during JSON parsing. This also affects the loading of JSON files. This vulnerability is fixed in 0.16.1. | |
| Title | EPyT-Flow has unsafe JSON deserialization (__type__) | |
| Weaknesses | CWE-502 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-02-06T20:56:43.719Z
Reserved: 2026-02-04T05:15:41.790Z
Link: CVE-2026-25632
Updated: 2026-02-06T20:56:34.510Z
Status : Received
Published: 2026-02-06T21:16:18.377
Modified: 2026-02-06T21:16:18.377
Link: CVE-2026-25632
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OpenCVE Enrichment
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