CVE-2026-55415

datamodel-code-generator vulnerable to code injection via `x-python-import` / `customTypePath` in generated import statements

HIGH
7.5
CVSS Score
Published: July 28, 2026 at 09:37 PM UTC
Updated: October 23, 2026 at 11:10 PM UTC
1 product affected across 1 vendorDatamodel Code Generator

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.11.6 ≤ v < 0.64.0
Affected range stops below 0.64.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-94CWE-95

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