Vulnerability Details CVE-2026-54656
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 0.52.1 until 0.60.2, datamodel-code-generator interpolates validators from --extra-template-data in src/datamodel_code_generator/model/pydantic_v2/base_model.py through _process_validators into @field_validator decorators without safe validation, allowing Python code execution when the generated Pydantic v2 model is imported. This issue is fixed in version 0.60.2.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 6.7%
CVSS Severity
CVSS v3 Score 7.8
References
- https://github.com/koxudaxi/datamodel-code-generator/commit/a43d02906111a2fdcaf13ee5b62eb2da85376f19
- https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-8m8r-38jm-f355
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-8m8r-38jm-f355
Products affected by CVE-2026-54656
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.52.1
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.52.2
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.53.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.54.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.54.1
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.55.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.56.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.56.1
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.57.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.58.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.59.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.59.1
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.60.0
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cpe:2.3:a:koxudaxi:datamodel-code-generator:0.60.1