{"cve":"CVE-2026-25632","nvd":{"published":"2026-02-06T21:16:18.377","modified":"2026-06-17T10:24:58.957","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-502"],"references":["https://github.com/WaterFutures/EPyT-Flow/commit/3fff9151494c7dbc72073830b734f0a7e550e385","https://github.com/WaterFutures/EPyT-Flow/releases/tag/v0.16.1","https://github.com/WaterFutures/EPyT-Flow/security/advisories/GHSA-74vm-8frp-7w68"],"products":["waterfutures:epyt-flow"],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2026-25632","score":0.00807,"percentile":0.56822,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-74vm-8frp-7w68","url":"https://osv.dev/vulnerability/GHSA-74vm-8frp-7w68","summary":"EPyT-Flow vulnerable to unsafe JSON deserialization (__type__)","modified":"2026-10-27T16:30:07.245251191Z","packages":[{"ecosystem":"PyPI","name":"epyt-flow","purl":"pkg:pypi/epyt-flow","ranges":["<0.16.1"],"fixed":["0.16.1"]}]},{"id":"PYSEC-2026-330","url":"https://osv.dev/vulnerability/PYSEC-2026-330","summary":"EPyT-Flow vulnerable to unsafe JSON deserialization (__type__)","modified":"2026-07-01T20:22:52.406443Z","packages":[{"ecosystem":"PyPI","name":"epyt-flow","purl":"pkg:pypi/epyt-flow","ranges":["<0.16.1"],"fixed":["0.16.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}