{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55391", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-16T18:57:40.183Z", "datePublished": "2026-07-28T21:45:39.058Z", "dateUpdated": "2026-07-28T21:45:39.058Z"}, "containers": {"cna": {"title": "datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding", "problemTypes": [{"descriptions": [{"cweId": "CWE-350", "lang": "en", "description": "CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-367", "lang": "en", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-vx7x-vcc2-c44g", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-vx7x-vcc2-c44g"}, {"name": "https://github.com/koxudaxi/datamodel-code-generator/commit/25c8b7e497419eb20b230fa3318c04f9bebc5a6f", "tags": ["x_refsource_MISC"], "url": "https://github.com/koxudaxi/datamodel-code-generator/commit/25c8b7e497419eb20b230fa3318c04f9bebc5a6f"}, {"name": "https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0"}], "affected": [{"vendor": "koxudaxi", "product": "datamodel-code-generator", "versions": [{"version": "< 0.63.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-28T21:45:39.058Z"}, "descriptions": [{"lang": "en", "value": "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/datamodel_code_generator/http.py through get_body, _validate_url_for_fetch, and _get_ips_from_host, but then lets httpx resolve the host again for the connection, allowing DNS rebinding to bypass allow_private_network=False and reach internal services. This issue is fixed in version 0.63.0."}], "source": {"advisory": "GHSA-vx7x-vcc2-c44g", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.63.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "datamodel-code-generator", "source": "cna", "vendor": "koxudaxi"}, "product": "datamodel-code-generator", "vendor": "koxudaxi"}], "created": "2026-07-28T23:30:03.480248+00:00", "updated": "2026-07-28T23:30:03.480274+00:00", "vendors": ["koxudaxi", "koxudaxi$PRODUCT$datamodel-code-generator"]}