CVE-2026-55391

{"id": "CVE-2026-55391", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55391", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-29T13:29:52.729955Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "koxudaxi", "product": "datamodel-code-generator", "versions": [{"status": "affected", "version": "< 0.63.0"}]}]}], "published": "2026-07-28T22:17:48.697", "references": [{"url": "https://github.com/koxudaxi/datamodel-code-generator/commit/25c8b7e497419eb20b230fa3318c04f9bebc5a6f", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-vx7x-vcc2-c44g", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://gist.github.com/thegr1ffyn/c1d54dd6ff2a4c0d7d0dabe00c4985f4", "tags": ["Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-350"}, {"lang": "en", "value": "CWE-367"}, {"lang": "en", "value": "CWE-918"}]}], "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."}, {"lang": "es", "value": "datamodel-code-generator genera modelos Pydantic v2, dataclasses, TypedDict y msgspec.Struct a partir de OpenAPI, JSON Schema, GraphQL, Avro, Protobuf y JSON, YAML o CSV sin procesar. Antes de la versi\u00f3n 0.63.0, datamodel-code-generator valida el host de una URL una vez en src/datamodel_code_generator/HTTP.py a trav\u00e9s de get_body, _validate_url_for_fetch y _get_ips_from_host, pero luego permite que httpx resuelva el host de nuevo para la conexi\u00f3n, permitiendo la revinculaci\u00f3n de DNS para eludir allow_private_network=False y alcanzar servicios internos. Este problema est\u00e1 solucionado en la versi\u00f3n 0.63.0."}], "lastModified": "2026-10-23T23:10:00.157", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1EC5840E-B827-4D5C-9D31-00308C961E63", "versionEndExcluding": "0.63.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}