CVE-2026-55391
HIGH
7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: low
Availability: none
Description
AI Translation Available
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. Prior to 0.63.0, datamodel-code-generator validates a URL host once in src/datamodel_code_generator/http.py through get_body, _validate_url_for_fetch, and _get_ips_from_host, but then lets httpx resolve the host again for the connection, allowing DNS rebinding to bypass allow_private_network=False and reach internal services. This issue is fixed in version 0.63.0.
350
Reliance on Reverse DNS Resolution for a Security-Critical Action
DraftCommon Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
367
Time-of-check Time-of-use (TOCTOU) Race Condition
IncompleteCommon Consequences
Security Scopes Affected:
Integrity
Other
Non-Repudiation
Potential Impacts:
Alter Execution Logic
Unexpected State
Modify Application Data
Modify Files Or Directories
Modify Memory
Other
Hide Activities
Applicable Platforms
All platforms may be affected
918
Server-Side Request Forgery (SSRF)
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Access Control
Potential Impacts:
Read Application Data
Execute Unauthorized Code Or Commands
Bypass Protection Mechanism
Applicable Platforms
Technologies:
Web Based, AI/ML, Web Server
https://github.com/koxudaxi/datamodel-code-generator/commit/25c8b7e497419eb20b2…
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0
https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-v…