CVE-2026-54653
`datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 CWE-1336 |
| Vendor | koxudaxi |
| Product | datamodel-code-generator |
| Published | Jul 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
koxudaxi / datamodel-code-generator
>= 0.17.0, < 0.60.2
References
github.com: https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-386q-5hp3-95m9 github.com: https://github.com/koxudaxi/datamodel-code-generator/commit/17fc235e234cbcfaaadef8c74cb72c9687db0d1d github.com: https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2