Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Waterfutures | Epyt-Flow | < 0.16.1 |
Related Weaknesses (CWE)
References
- https://github.com/WaterFutures/EPyT-Flow/commit/3fff9151494c7dbc72073830b734f0aPatch
- https://github.com/WaterFutures/EPyT-Flow/releases/tag/v0.16.1ProductRelease Notes
- https://github.com/WaterFutures/EPyT-Flow/security/advisories/GHSA-74vm-8frp-7w6Vendor Advisory
FAQ
What is CVE-2026-25632?
CVE-2026-25632 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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-contro...
How severe is CVE-2026-25632?
CVE-2026-25632 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-25632?
Check the references section above for vendor advisories and patch information. Affected products include: Waterfutures Epyt-Flow.