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TI-2026-39483 Aliases CVE-2026-54656GHSA-8m8r-38jm-f355

Code injection in koxudaxi datamodel-code-generator

Priority HIGH 69CWE-94Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00252 16th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed datamodel-code-generator (koxudaxi): 0.60.2datamodel-code-generator (PyPI): 0.60.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
koxudaxidatamodel-code-generator0.52.1 to before 0.60.20.60.2Patch availableCNA
—datamodel-code-generator (PyPI)0.52.1 to before 0.60.20.60.2Patch availableGHSA-8m8r-38jm-f355
  • datamodel-code-generator Vendorkoxudaxi Affected 0.52.1 to before 0.60.2 Fixed in 0.60.2 Patch available CNA
  • datamodel-code-generator (PyPI) Vendor— Affected 0.52.1 to before 0.60.2 Fixed in 0.60.2 Patch available GHSA-8m8r-38jm-f355

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:*0.52.1 to before 0.60.2Vulnerablekoxudaxi
  • cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:* Versions 0.52.1 to before 0.60.2 Vulnerable ·koxudaxi

Remediation

  • Fix · CNA datamodel-code-generator (koxudaxi) Fixed in 0.60.2
  • Fix · GHSA-8m8r-38jm-f355 datamodel-code-generator (PyPI) Fixed in 0.60.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54656
  2. 2026-10-03 Alias added: GHSA-8m8r-38jm-f355

References

Exploit 1

Patch 1

Other 2

  • TI-2026-39960 Information disclosure in koxudaxi datamodel-code-generator CVSS 3.1HIGH 7.5
  • TI-2026-39511 datamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by default) CVSS 3.1HIGH 8.2
  • TI-2026-39984 Code injection in koxudaxi datamodel-code-generator CVSS 3.1HIGH 7.5
  • TI-2026-39962 datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding CVSS 3.1HIGH 7.5
  • TI-2026-39480 `datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences