{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-84452",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-09-01T20:05:09.423Z",
        "datePublished": "2026-09-02T19:22:55.672Z",
        "dateUpdated": "2026-09-02T19:22:55.672Z"
    },
    "containers": {
        "cna": {
            "title": "Windows ML CLI: CORS misconfig enables localhost RCE",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-942",
                            "lang": "en",
                            "description": "CWE-942: Permissive Cross-domain Policy with Untrusted Domains",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-306",
                            "lang": "en",
                            "description": "CWE-306: Missing Authentication for Critical Function",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.6,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/microsoft/winml-cli/security/advisories/GHSA-96p9-rh4f-92cf",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/microsoft/winml-cli/security/advisories/GHSA-96p9-rh4f-92cf"
                },
                {
                    "name": "https://github.com/microsoft/winml-cli/pull/1321",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/microsoft/winml-cli/pull/1321"
                },
                {
                    "name": "https://github.com/microsoft/winml-cli/commit/f4073e0ef4700a25b623487e7e45c421ca0b9993",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/microsoft/winml-cli/commit/f4073e0ef4700a25b623487e7e45c421ca0b9993"
                }
            ],
            "affected": [
                {
                    "vendor": "microsoft",
                    "product": "winml-cli",
                    "versions": [
                        {
                            "version": "< 0.4.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-02T19:22:55.672Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Windows ML CLI is a command line tool for building portable, performant, and high-quality AI models for Windows ML. Prior to 0.4.0, the src/winml/modelkit/serve/cli_api.py component exposes WinML CLI commands through a localhost HTTP API without authentication and configures the allow_origins setting as a wildcard in both src/winml/modelkit/serve/cli_api.py and src/winml/modelkit/serve/app.py. A malicious website loaded by a user can send cross-origin requests to /v1/cli/build or /v1/cli/config and set the trust_remote_code parameter to true, which is converted to the --trust-remote-code command-line flag without validation. This reaches AutoConfig.from_pretrained with trust_remote_code=True in src/winml/modelkit/loader/_autoconfig.py and imports Python code from an attacker-controlled model repository, resulting in arbitrary code execution as the server user. This issue is fixed in version 0.4.0."
                }
            ],
            "source": {
                "advisory": "GHSA-96p9-rh4f-92cf",
                "discovery": "UNKNOWN"
            }
        }
    }
}