CVE-2026-54653

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 0.17.0 until 0.60.2, datamodel-code-generator preserves attacker-controlled default_factory values in src/datamodel_code_generator/parser/jsonschema.py through JsonSchemaObject.init and get_field_extras and emits them into Field(default_factory=...) or field(default_factory=...), allowing Python expression execution when the generated model is imported. This issue is fixed in version 0.60.2.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/koxudaxi/datamodel-code-generator/commit/17fc235e234cbcfaaadef8c74cb72c9687db0d1d	Patch
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2	Release Notes
https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-386q-5hp3-95m9	Exploit Vendor Advisory
https://gist.github.com/thegr1ffyn/9648b0fe4fcf7d569ac8e61dd11eebaf	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-28 22:17

Updated : 2026-08-06 20:14

NVD link : CVE-2026-54653

Mitre link : CVE-2026-54653

CVE.ORG link : CVE-2026-54653

JSON object : View

Products Affected

koxudaxi

datamodel-code-generator

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-1336

Improper Neutralization of Special Elements Used in a Template Engine

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