Riskcovery

CVE-2026-55389

datamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`

State
Published
Severity
7.5 High
Published
Jul 28, 2026
Updated
Jul 29, 2026
Reserved
Jun 16, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NGitHub_M

Weaknesses

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-610 Externally Controlled Reference to a Resource in Another Sphere

Affected Products

ProductVersions
datamodel-code-generatorkoxudaxi
  • < 0.62.0Affected

References

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