CVE-2026-54654 Details
Description
datamodel-code-generator generates Python data models from schema definitions. From 0.14.1 until 0.60.2, the --extra-template-data comment field is rendered into Python comments in src/datamodel_code_generator/model/template/TypeAliasAnnotation.jinja2, src/datamodel_code_generator/model/template/TypedDict.jinja2, src/datamodel_code_generator/model/template/dataclass.jinja2, src/datamodel_code_generator/model/template/msgspec.Struct.jinja2, src/datamodel_code_generator/model/template/pydantic/BaseModel.jinja2, and src/datamodel_code_generator/model/template/pydantic_v2/BaseModel.jinja2 without neutralizing carriage returns in Python # comments, allowing an attacker-controlled comment value to inject Python code into generated models that runs when imported. This issue is fixed in version 0.60.2.
A code injection vulnerability has been identified in datamodel-code-generator versions 0.14.1 prior to 0.60.2. The issue arises when the --extra-template-data option is used with a comments field that includes unescaped carriage returns. This allows an attacker to inject Python code into the generated data models, which is executed upon import. The vulnerability is present in several built-in templates where the comment field is rendered without proper escaping, enabling the injection of arbitrary Python code.
Upgrade to datamodel-code-generator version 0.60.2 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 28, 2026CISA-ADP
Assessed Jul 29, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-wjv6-jcfj-mf9r | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/koxudaxi/datamodel-code-generator/commit/b73abb5cd703a50471b8950bbd3bd0b82ad71de7 | [email protected] | Source CodeVendor |
| https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.2 | [email protected] | Release NotesVendor |
| https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-wjv6-jcfj-mf9r | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1336 | Improper Neutralization of Special Elements Used in a Template Engine | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| koxudaxi datamodel-code-generator | >= 0.14.1, <= 0.60.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 29, 2026 | CVE Modified | CISA-ADP |
| Jul 28, 2026 | New CVE Received | [email protected] |