CVE-2026-25632
CRITICALEPyT-Flow < 0.16.1 - Remote Code Execution via Untrusted JSON Deserialization
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2026-25632. PoCs published by lazarus0x1337.
AI-analyzed exploit summary This repository provides a detailed technical analysis and proof-of-concept for CVE-2026-25632, an unsafe JSON deserialization vulnerability in the EPyT-Flow Python package leading to Remote Code Execution (RCE). It includes vulnerable and fixed implementations, along with a comprehensive test suite demonstrating the attack vectors and mitigation.
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.
Exploits (1)
This repository provides a detailed technical analysis and proof-of-concept for CVE-2026-25632, an unsafe JSON deserialization vulnerability in the EPyT-Flow Python package leading to Remote Code Execution (RCE). It includes vulnerable and fixed implementations, along with a comprehensive test suite demonstrating the attack vectors and mitigation.
References (3)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H