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TI-2026-39984 Aliases CVE-2026-55415GHSA-5578-w22f-pfx9

Code injection in koxudaxi datamodel-code-generator

Priority HIGH 68CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
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 0.11.6 until 0.64.0, datamodel-code-generator allows attacker-controlled x-python-import or customTypePath schema extensions to reach src/datamodel_code_generator/parser/jsonschema.py and generated import handling through Import.from_full_path and Imports.create_line in src/datamodel_code_generator/imports.py, allowing a newline to break out of an import statement and execute Python code when the generated model is imported. This issue is fixed in version 0.64.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00488 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed datamodel-code-generator (koxudaxi): 0.64.0datamodel-code-generator (PyPI): 0.64.0

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-generator0.11.6 to before 0.64.00.64.0Patch availableCNA
—datamodel-code-generator (PyPI)0.11.6 to before 0.64.00.64.0Patch availableGHSA-5578-w22f-pfx9
  • datamodel-code-generator Vendorkoxudaxi Affected 0.11.6 to before 0.64.0 Fixed in 0.64.0 Patch available CNA
  • datamodel-code-generator (PyPI) Vendor— Affected 0.11.6 to before 0.64.0 Fixed in 0.64.0 Patch available GHSA-5578-w22f-pfx9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:*0.11.6 to before 0.64.0Vulnerablekoxudaxi
  • cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:* Versions 0.11.6 to before 0.64.0 Vulnerable ·koxudaxi

Remediation

  • Fix · CNA datamodel-code-generator (koxudaxi) Fixed in 0.64.0
  • Fix · GHSA-5578-w22f-pfx9 datamodel-code-generator (PyPI) Fixed in 0.64.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-55415
  2. 2026-10-03 Alias added: GHSA-5578-w22f-pfx9

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-2026-39483 Code injection in koxudaxi datamodel-code-generator CVSS 3.1HIGH 7.8
  • 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