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. Prior to 0.62.0, datamodel-code-generator resolves JSON Schema $ref targets in src/datamodel_code_generator/parser/jsonschema.py through is_url and _get_ref_body without containing file:// or ../ traversal references to the input directory and without honoring --no-allow-remote-refs, allowing arbitrary local file reads. This issue is fixed in version 0.62.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Koxudaxi | Datamodel-Code-Generator | < 0.62.0 |
Related Weaknesses (CWE)
References
- https://github.com/koxudaxi/datamodel-code-generator/commit/2ff4a72b4550a2b20697Patch
- https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.62.0Release Notes
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-83ExploitVendor Advisory
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-83ExploitVendor Advisory
FAQ
What is CVE-2026-55389?
CVE-2026-55389 is a vulnerability with a CVSS score of 7.5 (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. Prior to 0.62.0, datam...
How severe is CVE-2026-55389?
CVE-2026-55389 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55389?
Check the references section above for vendor advisories and patch information. Affected products include: Koxudaxi Datamodel-Code-Generator.