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CVE-2026-54655— `datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator

CVSS 7.8 · High EPSS 0.14% · P4

Possible ATT&CK Techniques 1AI

T1195 · Supply Chain Compromise

Affected Version Matrix 1

VendorProductVersion RangeStatus
koxudaxidatamodel-code-generator>= 0.51.0, < 0.60.2affected
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I. Basic Information for CVE-2026-54655

Vulnerability Information
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Vulnerability Title
`datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator
Source: CVE Program / CVE List V5
Vulnerability Description
datamodel-code-generator generates Python data models from schema definitions. From 0.51.0 until 0.60.2, x-python-type values parsed by src/datamodel_code_generator/parser/jsonschema.py in _get_python_type_override are inserted into generated field annotations without sufficient validation, allowing attacker-controlled JSON Schema content to execute Python code when the generated module is imported. This issue is fixed in version 0.60.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Koudai Aono datamodel-code-generator 代码注入漏洞
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 0.51.0版本至0.60.2之前版本存在代码注入漏洞，该漏洞源于_get_python_type_override方法未充分验证x-python-type值，导致攻击者控制的JSON Schema内容在执行生成的模块时执行Python代码。
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

VendorProductAffected VersionsCPESubscribe
koxudaxidatamodel-code-generator >= 0.51.0, < 0.60.2 -

II. Public POCs for CVE-2026-54655

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7906 chars
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III. Intelligence Information for CVE-2026-54655

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Patches & Fixes for CVE-2026-54655 (1)

Vendor Advisories for CVE-2026-54655 (1)

Vendor Pages for CVE-2026-54655 (1)

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

CVE-2026-546538.8 HIGH`datamodel-code-generator` vulnerable to code injection in via attacker-controlled `defaul
CVE-2026-546918.2 HIGHdatamodel-code-generator vulnerable to SSRF via --url: no host/IP validation, follows redi
CVE-2026-546908.2 HIGHdatamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by
CVE-2026-546547.8 HIGH`datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `
CVE-2026-546217.8 HIGH`datamodel-code-generator` vulnerable to code injection via unescaped carriage return in G
CVE-2026-546567.8 HIGH`datamodel-code-generator` vulnerable to code execution on import via unescaped `validator
CVE-2026-553907.5 HIGHArbitrary local file read via XSD `schemaLocation` (`xs:include`/`xs:import`) path travers
CVE-2026-553917.5 HIGHdatamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding
CVE-2026-553897.5 HIGHdatamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`
CVE-2026-554157.5 HIGHdatamodel-code-generator vulnerable to code injection via `x-python-import` / `customTypeP
CVE-2026-554033.7 LOWdatamodel-code-generator: Authorization / request headers leaked to cross-origin redirect

IV. Related Vulnerabilities

Same product: datamodel-code-generator
Same vendor: koxudaxi
Same weakness: CWE-94

V. Comments for CVE-2026-54655

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