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.
Affected products
koxudaxi: datamodel-code-generator
References4
- github.com/koxudaxi/datamodel-code-generator/security/advisorie… ExploitVendor Advisory
- github.com/koxudaxi/datamodel-code-generator/security/advisorie… ExploitVendor Advisory
- github.com/koxudaxi/datamodel-code-generator/commit/2ff4a72b455… Patch
- github.com/koxudaxi/datamodel-code-generator/releases/tag/0.62.0 Release Notes
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 1% percentile: 46 · as of 13 November 2026
- CWE
- CWE-22CWE-200CWE-610
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.