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Vulnerabilities CVE-2026-54653

CVE-2026-54653

High
Open
TLP:CLEAR

`datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field

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Description

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 0.17.0 until 0.60.2, datamodel-code-generator preserves attacker-controlled default_factory values in src/datamodel_code_generator/parser/jsonschema.py through JsonSchemaObject.init and get_field_extras and emits them into Field(default_factory=...) or field(default_factory=...), allowing Python expression execution when the generated model is imported. This issue is fixed in version 0.60.2.

Details

CVSS Score
8.8
EPSS Score
0.37%

29.7th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Confidence
90%
Published
Jul 28, 2026
Last Modified
Jul 28, 2026
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