Arbitrary Code Injection

Overview datamodel-code-generator is a Datamodel Code Generator Affected versions of this package are vulnerable to Arbitrary Code Injection via the validators processing in the --extra-template-data file. An attacker can execute arbitrary code during module import by supplying specially crafted...

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: SNYK:PYTHON-DATAMODELCODEGENERATOR-18388149...

`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: MEND:CVE-2026-54656...

CVE-2026-54656 `datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data

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 0.52.1 until 0.60.2, datamodel-code-generator interpolates validators from --extra-template-data in...

CVE-2026-54656 `datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data

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 0.52.1 until 0.60.2, datamodel-code-generator interpolates validators from --extra-template-data in...

EUVD-2026-50075

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 0.52.1 until 0.60.2, datamodel-code-generator interpolates validators from --extra-template-data in...

CVE-2026-54656 `datamodel-code-generator` vulnerable to code execution on import via unescaped `validators` entries in --extra-template-data

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 0.52.1 until 0.60.2, datamodel-code-generator interpolates validators from --extra-template-data in...

CVE-2026-54656

CVE-2026-54656 affects datamodel-code-generator (0.52.1–0.60.2). The issue arises when validators are interpolated from --extra-template-data into @field_validator decorators via _process_validators in src/datamodel_code_generator/model/pydantic_v2/base_model.py, enabling Python code execution up...

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 in the process that handles dereferencing JSON-Schema $ref values pointing to HTTP or HTTPS URLs without proper IP or host validation, scheme...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +136 more potentially affected by CVE-2026-54690 via datamodel-code-generator (>=0.10.3, <=0.59.1)

datamodel-code-generator PYPI version =0.10.3, =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-2026-54690 Source advisory: OSV:GHSA-954P-556P-R752...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +136 more potentially affected by CVE-2026-54690 via datamodel-code-generator (>=0.10.3, <=0.59.1)

datamodel-code-generator PYPI version =0.10.3, =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-2026-54690 Source advisory: SNYK:PYTHON-DATAMODELCODEGENERATOR-18385403...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +136 more potentially affected by CVE-2026-54690 via datamodel-code-generator (>=0.10.3, <=0.59.1)

datamodel-code-generator PYPI version =0.10.3, =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-2026-54690 Source advisory: GHSA-954P-556P-R752...

datamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by default)

Summary JSON-Schema $ref values pointing at HTTP or HTTPS URLs are silently dereferenced by datamodel-code-generator with no IP/host validation, no scheme allow-list, and redirects followed unconditionally. The --allow-remote-refs gate added in 0.56.0 defaults to None, which only emits a...

CVE-2026-54690 datamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by default)

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 0.9.1 until 0.61.0, datamodel-code-generator silently dereferences attacker-controlled JSON Schema $ref HTTP or...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +136 more potentially affected by CVE-2026-54690 via datamodel-code-generator (>=0.10.3, <=0.59.1)

datamodel-code-generator PYPI version =0.10.3, =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-2026-54690 Source advisory: MEND:CVE-2026-54690...

EUVD-2026-50074

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 0.9.1 until 0.61.0, datamodel-code-generator silently dereferences attacker-controlled JSON Schema $ref HTTP or...

CVE-2026-54690 datamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by default)

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 0.9.1 until 0.61.0, datamodel-code-generator silently dereferences attacker-controlled JSON Schema $ref HTTP or...

CVE-2026-54690

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 0.9.1 until 0.61.0, datamodel-code-generator silently dereferences attacker-controlled JSON Schema $ref HTTP or...

CVE-2026-54690 datamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by default)

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 0.9.1 until 0.61.0, datamodel-code-generator silently dereferences attacker-controlled JSON Schema $ref HTTP or...