# CVE-2026-55415: koxudaxi datamodel-code-generator code injection in generated imports

Source: https://junglewise.ai/threats/cve-2026-55415-koxudaxi-datamodel-code-generator-code-injection-in-generated  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-28. Updated: 2026-07-28  
License: CC BY 4.0 with a link back

CVE-2026-55415 · Severity: high · CVSS 7.5 · Published 2026-07-28

datamodel-code-generator is a tool used to automatically create Python code from data schemas like OpenAPI or JSON Schema. A vulnerability allows a malicious schema to inject hidden commands into the generated Python files. When a developer or system later imports these generated files, the injected commands execute automatically, potentially allowing an attacker to steal sensitive data or take control of the system.

Technologies: [Koxudaxi Datamodel-Code-Generator](https://junglewise.ai/threats/technologies/datamodel-code-generator), [datamodel-code-generator (PyPI)](https://junglewise.ai/threats/technologies/pypi-datamodel-code-generator). Vendors: [Koxudaxi](https://junglewise.ai/threats/vendors/koxudaxi), [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2026-55415 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-55415 being exploited in the wild.

**How severe is CVE-2026-55415?** High severity, with a CVSS score of 7.5, published 28 July 2026.

**Which products and versions are affected?** Koxudaxi Datamodel-Code-Generator >= 0.11.6, < 0.64.0, >= 0.11.6, <= 0.63.0; datamodel-code-generator (PyPI) ECOSYSTEM:introduced=0.11.6,fixed=0.64.0.

**Is there a fix for CVE-2026-55415?** Yes. datamodel-code-generator (PyPI): upgrade to 0.64.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-55415 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-55415?** Check whether you run Koxudaxi Datamodel-Code-Generator or datamodel-code-generator (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- datamodel-code-generator (PyPI): upgrade to 0.64.0 or later

  ```sh
  pip install "datamodel-code-generator>=0.64.0"
  ```


## Technical details

A code injection vulnerability exists in datamodel-code-generator due to improper neutralization of newlines in the 'x-python-import' and 'customTypePath' schema extensions. These extensions flow unsanitized into 'Import.from_full_path' and 'Imports.create_line' within 'src/datamodel_code_generator/imports.py'. By embedding a newline character in these fields, an attacker can break out of a Python 'from ... import ...' statement to inject arbitrary module-level code. This code executes immediately when the generated Python model is imported by a downstream application. The issue is fixed in version 0.64.0 by implementing strict validation of dotted Python identifier paths.

## Affected products

- koxudaxi datamodel-code-generator >= 0.11.6, < 0.64.0

## Identifiers

- CVE-2026-55415
- GHSA-5578-w22f-pfx9
- PYSEC-2026-3557

## Timeline

- 2026-06-12: disclosed: Security advisory published on GitHub
- 2026-06-14: patched: Version 0.64.0 released
- 2026-07-28: advisory: CVE-2026-55415 published to NVD

## References

- [https://github.com/koxudaxi/datamodel-code-generator/commit/577d49569c2254c371a97e495020ae2238a73b84](https://github.com/koxudaxi/datamodel-code-generator/commit/577d49569c2254c371a97e495020ae2238a73b84)
- [https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.64.0](https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.64.0)
- [https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-5578-w22f-pfx9](https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-5578-w22f-pfx9)

## Related threats

- [datamodel-code-generator Protobuf path traversal allows files to be written outside directory](https://junglewise.ai/threats/cve-2026-107377-datamodel-code-generator-protobuf-weak-import-path-traversal)
- [koxudaxi datamodel-code-generator credential leak in cross-origin redirects](https://junglewise.ai/threats/cve-2026-55403-koxudaxi-datamodel-code-generator-credential-leak-in-cross-origin)
- [koxudaxi datamodel-code-generator SSRF via DNS rebinding](https://junglewise.ai/threats/cve-2026-55391-koxudaxi-datamodel-code-generator-ssrf-via-dns-rebinding)
- [koxudaxi datamodel-code-generator path traversal in XML Schema parsing](https://junglewise.ai/threats/cve-2026-55390-koxudaxi-datamodel-code-generator-path-traversal-in-xml-schema)
- [koxudaxi datamodel-code-generator local file read via JSON Schema ref](https://junglewise.ai/threats/cve-2026-55389-koxudaxi-datamodel-code-generator-local-file-read-via-json-schema)