CVE-2026-54656
`datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | koxudaxi |
| Product | datamodel-code-generator |
| Published | Jul 28, 2026 |
Stay Ahead of the Next One
Get instant alerts for koxudaxi datamodel-code-generator
Be the first to know when new high vulnerabilities affecting koxudaxi datamodel-code-generator are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
koxudaxi / datamodel-code-generator
>= 0.52.1, < 0.60.2
References
github.com: https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-8m8r-38jm-f355 github.com: https://github.com/koxudaxi/datamodel-code-generator/commit/a43d02906111a2fdcaf13ee5b62eb2da85376f19 github.com: https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2