aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +136 more potentially affected by CVE-2026-54691 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-2026-54691 Source advisory: OSV:PYSEC-2026-3564...

`datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `--extra-template-data` `comment` field

Summarydatamodel-code-generator is vulnerable to code injection when a developer passes an --extra-template-data file whose comment value contains a literal \r carriage return. The comment variable is rendered into a Python comment in six built-in templates with no line-terminator escaping...

PYSEC-2026-3566 `datamodel-code-generator` vulnerable to code injection via unescaped carriage return in `--extra-template-data` `comment` field

Summary datamodel-code-generator is vulnerable to code injection when a developer passes an --extra-template-data file whose comment value contains a literal \r carriage return. The comment variable is rendered into a Python comment in six built-in templates with no line-terminator escaping...

PYSEC-2026-3557 datamodel-code-generator vulnerable to code injection via `x-python-import` / `customTypePath` in generated import statements

Summary A malicious input schema OpenAPI / JSON Schema can execute arbitrary Python code on the machine that imports the generated model. The x-python-import and customTypePath schema extensions flow, unsanitized, into the import statements datamodel-code-generator emits. A newline embedded in th...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +127 more potentially affected by CVE-2026-54654 via datamodel-code-generator (>=0.14.1, <=0.59.1)

datamodel-code-generator PYPI version =0.14.1, =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, =0.1.0, =0.6.0 and more Source cves: CVE-2026-54654 Source advisory: OSV:PYSEC-2026-3566...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +136 more potentially affected by CVE-2026-55415 via datamodel-code-generator (>=0.11.9, <=0.61.0)

datamodel-code-generator PYPI version =0.11.9, =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-2026-55415 Source advisory: OSV:PYSEC-2026-3557...

PYSEC-2026-3558 datamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`

Summary datamodel-code-generator resolves JSON-Schema $ref targets that point at the local filesystem without restricting them to the input/base directory and without honoring the remote-reference security control. In the default configuration, an attacker who controls an input schema a "paste yo...

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

SummaryWhen 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...

`datamodel-code-generator` vulnerable to code execution on import via `x-python-type` JSON-Schema extension in datamodel-code-generator

Summarydatamodel-code-generator honours a custom x-python-type JSON-Schema extension that lets a schema author override the generated Python type for a field. The value is forwarded verbatim into the generated Python source as the field annotation, with a single sanitisation pass that is trivial ...

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:PYSEC-2026-3565...

aas-middleware (>=0.1.0, <=0.2.6), acex-client (>=0.0.6, <=4.6.0) +115 more potentially affected by CVE-2026-54621 via datamodel-code-generator (>=0.25.1, <=0.59.1)

datamodel-code-generator PYPI version =0.25.1, =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, =0.1.0, =0.6.0 and more Source cves: CVE-2026-54621 Source advisory: OSV:PYSEC-2026-3561...

PYSEC-2026-3560 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...

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:PYSEC-2026-3560...

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

SummaryJSON-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 deprecati...

Exploit for CVE-2026-63720

CVE-2026-63720: Code Injection in datamodel-code-generator via...

Code Injection

datamodel-code-generator is vulnerable to Code Injection. The vulnerability is due to insufficient validation of x-python-type values from attacker-controlled JSON Schema content before inserting them into generated Python field annotations, which allows an attacker to execute arbitrary Python co...

Sensitive Information Exposure

datamodel-code-generator is vulnerable to Sensitive Information Exposure. The vulnerability is due to the reuse of Authorization, Cookie, and Proxy-Authorization headers when following cross-origin redirects while fetching remote schemas, which allows an attacker controlling a redirect target to...

Server-Side Request Forgery (SSRF)

datamodel-code-generator is vulnerable to Server-Side Request Forgery SSRF. The vulnerability is due to http.getbody in src/datamodelcodegenerator/http.py accepting --url targets and redirect chain targets without proper host/IP validation, which allows an attacker to perform server-side request...

Path Traversal

datamodel-code-generator is vulnerable to Path Traversal. The vulnerability is due to improper validation of schemaLocation values in XML Schema parsing xs:include, xs:import, xs:redefine, and xs:override, which allows an attacker to reference files outside the intended input base path, resulting...

SUSE 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...