CVE-2026-54653

The CVE affects the datamodel-code-generator project. From versions 0.17.0 through 0.60.2, the tool could preserve attacker-controlled default_factory values in JsonSchemaObject.init/get_field_extras, emitting them into Field(default_factory=...) and enabling Python expression execution when the ...

CVE-2026-54653 `datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field

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 0.17.0 until 0.60.2, datamodel-code-generator preserves attacker-controlled defaultfactory values in...

CVE-2026-54653 `datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field

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 0.17.0 until 0.60.2, datamodel-code-generator preserves attacker-controlled defaultfactory values in...

CVE-2026-54653

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 0.17.0 until 0.60.2, datamodel-code-generator preserves attacker-controlled defaultfactory values in...

Server-side Request Forgery (SSRF)

Overview datamodel-code-generator is a Datamodel Code Generator Affected versions of this package are vulnerable to Server-side Request Forgery SSRF through the getbody function, which performs DNS resolution validation separately from the actual HTTP connection. An attacker can access internal...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +138 more potentially affected by CVE-2026-55391 via datamodel-code-generator (>=0.5.10, <=0.61.0)

datamodel-code-generator PYPI version =0.5.10, =0.1.0, =0.0.6, =0.0.1, =0.2.5, =0.1.0a0.dev0, =0.0.2, =0.1.1, =0.1.1, =0.1.13, =0.1.1, =0.0.0, =0.1.0 and more Source cves: CVE-2026-55391 Source advisory: GHSA-VX7X-VCC2-C44G...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +138 more potentially affected by CVE-2026-55391 via datamodel-code-generator (>=0.5.10, <=0.61.0)

datamodel-code-generator PYPI version =0.5.10, =0.1.0, =0.0.6, =0.0.1, =0.2.5, =0.1.0a0.dev0, =0.0.2, =0.1.1, =0.1.1, =0.1.13, =0.1.1, =0.0.0, =0.1.0 and more Source cves: CVE-2026-55391 Source advisory: SNYK:PYTHON-DATAMODELCODEGENERATOR-18388077...

datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

Summary datamodel-code-generator's anti-SSRF guard validates the resolved IP of a fetch target once and then lets httpx perform its own independent DNS resolution to connect, so the validated address is never pinned. A hostname that resolves to a public IP at validation time and a private IP at...

GHSA-VX7X-VCC2-C44G datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

Summary datamodel-code-generator's anti-SSRF guard validates the resolved IP of a fetch target once and then lets httpx perform its own independent DNS resolution to connect, so the validated address is never pinned. A hostname that resolves to a public IP at validation time and a private IP at...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +138 more potentially affected by CVE-2026-55391 via datamodel-code-generator (>=0.5.10, <=0.61.0)

datamodel-code-generator PYPI version =0.5.10, =0.1.0, =0.0.6, =0.0.1, =0.2.5, =0.1.0a0.dev0, =0.0.2, =0.1.1, =0.1.1, =0.1.13, =0.1.1, =0.0.0, =0.1.0 and more Source cves: CVE-2026-55391 Source advisory: OSV:GHSA-VX7X-VCC2-C44G...

EUVD-2026-50076

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/datamodelcodegenerator/http.py through...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +138 more potentially affected by CVE-2026-55391 via datamodel-code-generator (>=0.5.10, <=0.61.0)

datamodel-code-generator PYPI version =0.5.10, =0.1.0, =0.0.6, =0.0.1, =0.2.5, =0.1.0a0.dev0, =0.0.2, =0.1.1, =0.1.1, =0.1.13, =0.1.1, =0.0.0, =0.1.0 and more Source cves: CVE-2026-55391 Source advisory: MEND:CVE-2026-55391...

CVE-2026-55391

CVE-2026-55391 affects the datamodel-code-generator project. Prior to version 0.63.0, the tool validates a URL host in http.py via get_body, _validate_url_for_fetch, and _get_ips_from_host, but then allows httpx to resolve the host again for the connection, enabling DNS rebinding to bypass allow_...

CVE-2026-55391 datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

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/datamodelcodegenerator/http.py through...

CVE-2026-55391

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/datamodelcodegenerator/http.py through...

CVE-2026-55391 datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

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/datamodelcodegenerator/http.py through...

CVE-2026-55391 datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

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/datamodelcodegenerator/http.py through...

GHSA-8M8R-38JM-F355 `datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data

Summary When the Pydantic v2 output mode is in use, datamodel-code-generator reads a validators array from each model entry in the --extra-template-data file and synthesises a Pydantic @fieldvalidator... decorator from each entry. The field names and the validator mode are interpolated into the...

agency-swarm (>=1.9.8, <=1.9.9), aigear (>=0.0.2, <=0.2.1) +34 more potentially affected by CVE-2026-54656 via datamodel-code-generator (>=0.52.2, <=0.59.1)

datamodel-code-generator PYPI version =0.52.2, =1.9.8, =0.0.2, =1.3.5, =0.3.1, =0.9.0, =0.7.6, =0.14.2, =0.3.2, =1.2.1, =8.1.2, =0.6.0, =2.5.1, =3.0.4 and more Source cves: CVE-2026-54656 Source advisory: OSV:GHSA-8M8R-38JM-F355...

agency-swarm (>=1.9.8, <=1.9.9), aigear (>=0.0.2, <=0.2.1) +34 more potentially affected by CVE-2026-54656 via datamodel-code-generator (>=0.52.2, <=0.59.1)

datamodel-code-generator PYPI version =0.52.2, =1.9.8, =0.0.2, =1.3.5, =0.3.1, =0.9.0, =0.7.6, =0.14.2, =0.3.2, =1.2.1, =8.1.2, =0.6.0, =2.5.1, =3.0.4 and more Source cves: CVE-2026-54656 Source advisory: GHSA-8M8R-38JM-F355...