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Tool Directory

CVE-2026-55415

HighPublished

datamodel-code-generator vulnerable to code injection via x-python-import / customTypePath in generated import statements

Published: Jul 28, 2026
Updated: Jul 29, 2026
Assigning CNA: GitHub_M
Evidence observed: Aug 10, 2026

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 35.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2026-63720-datamodel-code-generatorPoC
Code injection (RCE) in datamodel-code-generator via unvalidated customBasePath (CVE-2026-63720)

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