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CVE-2026-55389— datamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`

Quick assessment

Affected
koxudaxi datamodel-code-generator
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Koudai Aono datamodel-code-generator是日本Koudai Aono个人开发者的一款数据模型代码生成器。 Koudai Aono datamodel-code-generator 0.62.0之前版本存在安全漏洞，该漏洞源于解析JSON Schema $ref目标时未正确限制文件路径，可能允许任意本地文件读取。

CVSS 7.5 · High EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 1

VendorProduct Version RangeStatus
koxudaxi datamodel-code-generator < 0.62.0 affected
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I. Basic Information for CVE-2026-55389

Vulnerability Information
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Vulnerability Title
datamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Koudai Aono datamodel-code-generator 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Koudai Aono datamodel-code-generator是日本Koudai Aono个人开发者的一款数据模型代码生成器。 Koudai Aono datamodel-code-generator 0.62.0之前版本存在安全漏洞，该漏洞源于解析JSON Schema $ref目标时未正确限制文件路径，可能允许任意本地文件读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
koxudaxi datamodel-code-generator < 0.62.0 -

II. Public POCs for CVE-2026-55389

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6189 chars
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III. Intelligence Information for CVE-2026-55389

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Patches & Fixes for CVE-2026-55389 (1)

Vendor Advisories for CVE-2026-55389 (1)

Same Patch Batch · koxudaxi · 2026-07-28 · 12 CVEs total

CVE-2026-54653 8.8 HIGH `datamodel-code-generator` vulnerable to code injection in via attacker-controlled `defaul
CVE-2026-54691 8.2 HIGH datamodel-code-generator vulnerable to SSRF via --url: no host/IP validation, follows redi
CVE-2026-54690 8.2 HIGH datamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by
CVE-2026-54654 7.8 HIGH `datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `
CVE-2026-54621 7.8 HIGH `datamodel-code-generator` vulnerable to code injection via unescaped carriage return in G
CVE-2026-54655 7.8 HIGH `datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON
CVE-2026-54656 7.8 HIGH `datamodel-code-generator` vulnerable to code execution on import via unescaped `validator
CVE-2026-55390 7.5 HIGH Arbitrary local file read via XSD `schemaLocation` (`xs:include`/`xs:import`) path travers
CVE-2026-55391 7.5 HIGH datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding
CVE-2026-55415 7.5 HIGH datamodel-code-generator vulnerable to code injection via `x-python-import` / `customTypeP
CVE-2026-55403 3.7 LOW datamodel-code-generator: Authorization / request headers leaked to cross-origin redirect

IV. Related Vulnerabilities

Same product: datamodel-code-generator
Same vendor: koxudaxi
Same weakness: CWE-22

V. Comments for CVE-2026-55389

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