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CVE-2026-55389

datamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`

Published: Jul 28, 2026Updated: Aug 6, 2026 Sources: CVE List NVDCWE-22
7.5HIGH
NVD MITRE
EPSS Score
0.4%
Top 69.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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. Prior to 0.62.0, datamodel-code-generator resolves JSON Schema $ref targets in src/datamodel_code_generator/parser/jsonschema.py through is_url and _get_ref_body without containing file:// or ../ traversal references to the input directory and without honoring --no-allow-remote-refs, allowing arbitrary local file reads. This issue is fixed in version 0.62.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-22CWE-200CWE-610

Affected Products

koxudaxi
datamodel-code-generator

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/koxudaxi/datamodel-code-generator/commit/2ff4a72b4550a2b2069754c5b075b1655067e5fb
github.com
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.62.0
github.com
https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-8359-h9fx-j6v9
github.com

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