Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Koxudaxi | Datamodel-Code-Generator | >= 0.17.0, < 0.60.2 |
Related Weaknesses (CWE)
References
- https://github.com/koxudaxi/datamodel-code-generator/commit/17fc235e234cbcfaaadePatch
- https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2Release Notes
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-38ExploitVendor Advisory
- https://gist.github.com/thegr1ffyn/9648b0fe4fcf7d569ac8e61dd11eebafThird Party Advisory
FAQ
What is CVE-2026-54653?
CVE-2026-54653 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 0.6...
How severe is CVE-2026-54653?
CVE-2026-54653 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54653?
Check the references section above for vendor advisories and patch information. Affected products include: Koxudaxi Datamodel-Code-Generator.