CVE-2026-54653

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

Published Jul 28, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-386q-5hp3-95m9 `datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field
History
Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Koxudaxi
Koxudaxi datamodel-code-generator
Vendors & Products Koxudaxi
Koxudaxi datamodel-code-generator
Type Values Removed Values Added
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.
Title `datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field
Weaknesses CWE-1336
CWE-94
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 29, 2026, 1:27 PM
Reserved
Jun 15, 2026, 8:16 PM
Status
Analyzed
Published
Jul 28, 2026, 10:17 PM
Modified
Oct 23, 2026, 11:10 PM