CVE-2026-54690 | datamodel-code-generator generates Pydantic v2 models, datac… | CVSS 8.2 HIGH

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. 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.

Metadata

CVE ID: CVE-2026-54690
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-15 22:53 UTC
Published: 2026-07-28 21:42 UTC
Last updated: 2026-07-28 21:42 UTC
Primary CWE: CWE-918
CWE-918: Server-Side Request Forgery (SSRF)
Vendor / Product: koxudaxi / datamodel-code-generator
Sources: cve.org · NVD

Severity & Metrics

8.2 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Affected products (1)

Vendor	Product	Platform	Versions
koxudaxi	datamodel-code-generator	—	>= 0.9.1, < 0.61.0

Weakness (CWE)

CWE	Source	Description
CWE-918	cna	CWE-918: Server-Side Request Forgery (SSRF)

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.2	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

References (3)

https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-954p-556p-r752 https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-954p-556p-r752
https://github.com/koxudaxi/datamodel-code-generator/commit/5fdba4a09f2d7a9996a504975b7ef7d63e3715bb https://github.com/koxudaxi/datamodel-code-generator/commit/5fdba4a09f2d7a9996a504975b7ef7d63e3715bb
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.61.0 https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.61.0