CVE-2026-54690: Koxudaxi Datamodel-Code-Generator

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

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. From 0.9.1 until 0.61.0, datamodel-code-generator silently dereferences attacker-controlled JSON Schema $ref HTTP or HTTPS URLs in src/datamodel_code_generator/parser/jsonschema.py through _get_ref_body, and the --allow-remote-refs gate can warn instead of blocking, allowing server-side request forgery through src/datamodel_code_generator/http.py. This issue is fixed in version 0.61.0.

Affected products

• Koxudaxi Datamodel-Code-Generator: from 0.9.1, before 0.61.0 (fixed in 0.61.0)

Published 2026-07-28. Last modified 2026-08-06.