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OpenAdvisories
High · 7.8 CVE-2026-54655 EUVD-2026-50071GHSA-m34r-v34r-rf9qPYSEC-2026-3562

`datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator

Published Jul 28, 2026 · Updated Jul 29, 2026 · Assigned by GitHub_M

Description

datamodel-code-generator generates Python data models from schema definitions. From 0.51.0 until 0.60.2, x-python-type values parsed by src/datamodel_code_generator/parser/jsonschema.py in _get_python_type_override are inserted into generated field annotations without sufficient validation, allowing attacker-controlled JSON Schema content to execute Python code when the generated module is imported. This issue is fixed in version 0.60.2.

Affected products

VendorProductAffectedFixed
koxudaxi datamodel-code-generator >= 0.51.0, < 0.60.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI datamodel-code-generator >= 0.51.0, < 0.60.2 0.60.2 GHSA-m34r-v34r-rf9q

References