Improper Neutralization of Special Elements Used in a Template Engine

Overview datamodel-code-generator is a Datamodel Code Generator Affected versions of this package are vulnerable to Improper Neutralization of Special Elements Used in a Template Engine via the comment field in the --extra-template-data. An attacker can execute arbitrary Python code during import...

`datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `--extra-template-data` `comment` field

Summary datamodel-code-generator is vulnerable to code injection when a developer passes an --extra-template-data file whose comment value contains a literal \r carriage return. The comment variable is rendered into a Python comment in six built-in templates with no line-terminator escaping...

GHSA-WJV6-JCFJ-MF9R `datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `--extra-template-data` `comment` field

Summary datamodel-code-generator is vulnerable to code injection when a developer passes an --extra-template-data file whose comment value contains a literal \r carriage return. The comment variable is rendered into a Python comment in six built-in templates with no line-terminator escaping...

Arbitrary Code Injection

Overview datamodel-code-generator is a Datamodel Code Generator Affected versions of this package are vulnerable to Arbitrary Code Injection via the validators processing in the --extra-template-data file. An attacker can execute arbitrary code during module import by supplying specially crafted...

`datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data

Summary When the Pydantic v2 output mode is in use, datamodel-code-generator reads a validators array from each model entry in the --extra-template-data file and synthesises a Pydantic @fieldvalidator... decorator from each entry. The field names and the validator mode are interpolated into the...

CVE-2026-54656 `datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data

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...

CVE-2026-54656 `datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data

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...

CVE-2026-54656

CVE-2026-54656 affects datamodel-code-generator (0.52.1–0.60.2). The issue arises when validators are interpolated from --extra-template-data into @field_validator decorators via _process_validators in src/datamodel_code_generator/model/pydantic_v2/base_model.py, enabling Python code execution up...

EUVD-2026-50067

datamodel-code-generator generates Python data models from schema definitions. From 0.14.1 until 0.60.2, the --extra-template-data comment field is rendered into Python comments in src/datamodelcodegenerator/model/template/TypeAliasAnnotation.jinja2,...

CVE-2026-54654 `datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `--extra-template-data` `comment` field

datamodel-code-generator generates Python data models from schema definitions. From 0.14.1 until 0.60.2, the --extra-template-data comment field is rendered into Python comments in src/datamodelcodegenerator/model/template/TypeAliasAnnotation.jinja2,...

CVE-2026-54654

CVE-2026-54654 affects datamodel-code-generator (versions 0.14.1–0.60.2). The --extra-template-data comment field is rendered into Python comments in multiple templates without neutralizing carriage returns, allowing attacker-controlled comments to inject Python code into generated models that ex...

CVE-2026-54654 `datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `--extra-template-data` `comment` field

datamodel-code-generator generates Python data models from schema definitions. From 0.14.1 until 0.60.2, the --extra-template-data comment field is rendered into Python comments in src/datamodelcodegenerator/model/template/TypeAliasAnnotation.jinja2,...

CVE-2026-54654

datamodel-code-generator generates Python data models from schema definitions. From 0.14.1 until 0.60.2, the --extra-template-data comment field is rendered into Python comments in src/datamodelcodegenerator/model/template/TypeAliasAnnotation.jinja2,...

PT-2026-65606

Name of the Vulnerable Software and Affected Versions datamodel-code-generator versions 0.14.1 through 0.60.1 Description Code injection is possible when the --extra-template-data file contains a comment value with a carriage return r. The software renders this comment variable into Python commen...