{"id":"CVE-2026-55389","aliases":["GHSA-8359-h9fx-j6v9","PYSEC-2026-3558"],"url":"https://o3.security/vulnerability/CVE-2026-55389","summary":"datamodel-code-generator vulnerable to arbitrary local file read via JSON-Schema `$ref` (`file://` and `../` traversal), bypassing `--no-allow-remote-refs`","details":"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 0.62.0, datamodel-code-generator resolves JSON Schema $ref targets in src/datamodel_code_generator/parser/jsonschema.py through is_url and _get_ref_body without containing file:// or ../ traversal references to the input directory and without honoring --no-allow-remote-refs, allowing arbitrary local file reads. This issue is fixed in version 0.62.0.","published":"2026-07-28T21:49:21.260Z","modified":"2026-09-11T11:46:57.584091764Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.0043,"percentile":0.36268,"asOf":"2026-09-10"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"datamodel-code-generator","fixedVersion":"0.62.0"}],"fix":{"url":"https://github.com/koxudaxi/datamodel-code-generator/commit/2ff4a72b4550a2b2069754c5b075b1655067e5fb","label":"koxudaxi/datamodel-code-generator@2ff4a72"},"references":[{"type":"WEB","url":"https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.62.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55389.json"},{"type":"ADVISORY","url":"https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-8359-h9fx-j6v9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55389"},{"type":"FIX","url":"https://github.com/koxudaxi/datamodel-code-generator/commit/2ff4a72b4550a2b2069754c5b075b1655067e5fb"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T11:46:57.584091764Z"}}