CVE-2026-55389
datamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`
CVSS Score
7.5
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. 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.
| CWE | CWE-22 CWE-200 CWE-610 |
| 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:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
koxudaxi / datamodel-code-generator
< 0.62.0
References
github.com: https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-8359-h9fx-j6v9 github.com: https://github.com/koxudaxi/datamodel-code-generator/commit/2ff4a72b4550a2b2069754c5b075b1655067e5fb github.com: https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.62.0