Vulnerabilities CVE-2026-54656

CVE-2026-54656

High

Open

TLP:CLEAR

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

NVD CVE.org

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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 0.52.1 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.

Details

CVSS Score: 7.8
EPSS Score ⓘ: 0.17%

6.7th percentile
CVSS Vector: CVSS:3.1/AV:L/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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