CVE-2026-54656: high-severity vulnerability in koxudaxi datamodel-code-generator
`datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.3%
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
koxudaxi · datamodel-code-generatorRelated CVEs — koxudaxi datamodel-code-generator
In the same product, most dangerous first.
CVE-2026-63720HIGHdatamodel-code-generator Code Injection via Unvalidated customBasePath Schema FieldEPSS 0.7%CVE-2026-54653HIGH`datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema fieldEPSS 0.7%CVE-2026-55390HIGHArbitrary local file read via XSD `schemaLocation` (`xs:include`/`xs:import`) path traversal, with no remote-ref gateEPSS 0.6%CVE-2026-55389HIGHdatamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`EPSS 0.5%CVE-2026-55415HIGHdatamodel-code-generator vulnerable to code injection via `x-python-import` / `customTypePath` in generated import statementsEPSS 0.5%CVE-2026-54690HIGHdatamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by default)EPSS 0.4%