CVE-2026-54656
HIGH`datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data
Title source: cnaDescription
datamodel-code-generator generates Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON, YAML, or CSV. From 0.52.1 until 0.60.2, datamodel-code-generator interpolates validators from --extra-template-data in src/datamodel_code_generator/model/pydantic_v2/base_model.py through _process_validators into @field_validator decorators without safe validation, allowing Python code execution when the generated Pydantic v2 model 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-8m8r-38jm-f355
X_Refsource_Misc x_refsource_misc
https://github.com/koxudaxi/datamodel-code-generator/commit/a43d02906111a2fdcaf13ee5b62eb2da85376f19
X_Refsource_Misc x_refsource_misc
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2
Scores
CVSS v3
7.8
EPSS
0.0015
EPSS Percentile
4.7%
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
>= 0.52.1, < 0.60.2
pypi/datamodel-code-generator
0.52.1 - 0.60.2PyPI
Published
Jul 28, 2026
Tracked Since
Jul 29, 2026