RCE in Koxudaxi Datamodel-Code-Generator
CVE-2026-54653
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 0.17.0 until 0.60.2, datamodel-code-generator preserves attacker-controlled default_factory values in src/datamodel_code_generator/parser/jsonschema.py through JsonSchemaObject.init and get_field_extras and emits them into Field(default_factory=...) or field(default_factory=...), allowing Python expression execution when the generated model is imported. This issue is fixed in version 0.60.2.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.004 (37.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Koxudaxi Datamodel-code-generator — versions >= 0.17.0, < 0.60.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-54653?
- CVE-2026-54653 is a high-severity vulnerability in Koxudaxi Datamodel-Code-Generator, classified under Code Injection. CVSS score: 8.8/10. Published 2026-07-28.
- How severe is CVE-2026-54653?
- High severity. CVSS v3 base score is 8.8 out of 10.