Path Traversal in Koxudaxi Datamodel-Code-Generator
CVE-2026-55389
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.004 (36.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Koxudaxi Datamodel-code-generator — versions < 0.62.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-55389?
- CVE-2026-55389 is a high-severity vulnerability in Koxudaxi Datamodel-Code-Generator, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-28.
- How severe is CVE-2026-55389?
- High severity. CVSS v3 base score is 7.5 out of 10.