CVE-2026-54655
HIGH`datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-m34r-v34r-rf9q
X_Refsource_Misc x_refsource_misc
https://github.com/koxudaxi/datamodel-code-generator/commit/2c93c9b712f43391dcfa975a1e4aa0b7c93ccbba
X_Refsource_Misc x_refsource_misc
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2
Scores
CVSS v3
7.8
EPSS
0.0014
EPSS Percentile
4.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-94
Status
published
Products (2)
koxudaxi/datamodel-code-generator
>= 0.51.0, < 0.60.2
pypi/datamodel-code-generator
0.51.0 - 0.60.2PyPI
Published
Jul 28, 2026
Tracked Since
Jul 29, 2026