CVE-2026-55415

High

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 0.11.6 until 0.64.0, datamodel-code-generator allows attacker-controlled x-python-import or customTypePath schema extensions to reach src/datamodel_code_generator/parser/jsonschema.py and generated import handling through Import.from_full_path and Imports.create_line in src/datamodel_code_generator/imports.py, allowing a newline to break out of an import statement and execute Python code when the generated model is imported. This issue is fixed in version 0.64.0.

SeverityHigh
CVSS7.5
Exploit probability—
ProductKoxudaxi Datamodel-code-generator
PublishedJul 28, 2026
First seenJul 28, 2026

How to fix

Update
  • koxudaxi datamodel-code-generator0.64.0 or later
  • datamodel-code-generator0.64.0 or later

Affected products

ProductAffected versionsFixed in
koxudaxi datamodel-code-generator0.11.6 ≤ v < 0.64.00.64.0
datamodel-code-generatorPyPI0.11.6 ≤ v < 0.64.00.64.0

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