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CVE-2026-54621

`datamodel-code-generator` vulnerable to code injection via unescaped carriage return in GraphQL Union description

Published: Jul 28, 2026Updated: Jul 30, 2026 Sources: CVE List NVDCWE-94
7.8HIGH
NVD MITRE
EPSS Score
0.1%
Top 96.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

datamodel-code-generator generates Python data models from schema definitions. Prior to 0.60.1, GraphQL Union description values in src/datamodel_code_generator/model/template/UnionTypeStatement.jinja2 and src/datamodel_code_generator/model/template/UnionTypeStatement.py312.jinja2 are rendered into Python comments without neutralizing carriage returns in Python # comments, allowing attacker-controlled GraphQL schema content to inject Python code into generated models that runs when imported. This issue is fixed in version 0.60.1.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94CWE-1336

Affected Products

koxudaxi
datamodel-code-generator

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-j884-q54q-mmx3
github.com
https://github.com/koxudaxi/datamodel-code-generator/commit/aec47bc414779f4a9992b3919c8f7663afd6c988
github.com
https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.60.1
github.com

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