CVE-2026-54653
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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 0.17.0 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| koxudaxi | datamodel-code-generator | >= 0.17.0, < 0.60.2 | affected |
Weaknesses
- CWE-94: CWE-94: Improper Control of Generation of Code ('Code Injection')
- CWE-1336: CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
References
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-386q-5hp3-95m9
- https://github.com/koxudaxi/datamodel-code-generator/commit/17fc235e234cbcfaaadef8c74cb72c9687db0d1d
- https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2
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