datamodel-code-generator generates Python data models from schema definitions. From 0.51.0 until 0.60.2, x-python-type values parsed by src/datamodel_code_generator/parser/jsonschema.py in _get_python_type_override are inserted into generated field annotations without sufficient validation, allowing attacker-controlled JSON Schema content to execute Python code when the generated module is imported. This issue is fixed in version 0.60.2.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
koxudaxi datamodel-code-generator affected
Version Status Constraints
>= 0.51.0, < 0.60.2 affected —

No data.

No data.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-m34r-v34r-rf9q `datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/koxudaxi/datamodel-code-generator/commit/2c93c9b712f43391dcfa975a1e4aa0b7c93ccbba cve-icon
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2 cve-icon
https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-m34r-v34r-rf9q cve-icon
History

Tue, 28 Jul 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Koxudaxi
Koxudaxi datamodel-code-generator
Vendors & Products Koxudaxi
Koxudaxi datamodel-code-generator

Tue, 28 Jul 2026 22:00:00 +0000

Type Values Removed Values Added
Description datamodel-code-generator generates Python data models from schema definitions. From 0.51.0 until 0.60.2, x-python-type values parsed by src/datamodel_code_generator/parser/jsonschema.py in _get_python_type_override are inserted into generated field annotations without sufficient validation, allowing attacker-controlled JSON Schema content to execute Python code when the generated module is imported. This issue is fixed in version 0.60.2.
Title `datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-07-28T21:33:45.438Z

Reserved: 2026-06-15T20:16:46.199Z

Link: CVE-2026-54655

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-28T23:30:03Z

Weaknesses