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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-1336",
"CWE-94"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54621.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0.25.0"
},
{
"fixed": "0.60.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "aec47bc414779f4a9992b3919c8f7663afd6c988"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "0.60.1",
"range": [
{
"fixed": "a321547e8b94d352394b6f98c919866fc149473c"
}
],
"source": "REFERENCES_TAG"
}
]
}