{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2025-61919",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2025-10-03T22:21:59.615Z",
        "datePublished": "2025-10-10T19:22:42.454Z",
        "dateUpdated": "2025-10-10T20:48:20.240Z"
    },
    "containers": {
        "cna": {
            "title": "Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-400",
                            "lang": "en",
                            "description": "CWE-400: Uncontrolled Resource Consumption",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/rack/rack/security/advisories/GHSA-6xw4-3v39-52mm",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/rack/rack/security/advisories/GHSA-6xw4-3v39-52mm"
                },
                {
                    "name": "https://github.com/rack/rack/commit/4e2c903991a790ee211a3021808ff4fd6fe82881",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/rack/rack/commit/4e2c903991a790ee211a3021808ff4fd6fe82881"
                },
                {
                    "name": "https://github.com/rack/rack/commit/cbd541e8a3d0c5830a3c9a30d3718ce2e124f9db",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/rack/rack/commit/cbd541e8a3d0c5830a3c9a30d3718ce2e124f9db"
                },
                {
                    "name": "https://github.com/rack/rack/commit/e179614c4a653283286f5f046428cbb85f21146f",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/rack/rack/commit/e179614c4a653283286f5f046428cbb85f21146f"
                }
            ],
            "affected": [
                {
                    "vendor": "rack",
                    "product": "rack",
                    "versions": [
                        {
                            "version": "< 2.2.20",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.0, < 3.1.18",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.2, < 3.2.3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2025-10-10T19:22:42.454Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, `Rack::Request#POST` reads the entire request body into memory for `Content-Type: application/x-www-form-urlencoded`, calling `rack.input.read(nil)` without enforcing a length or cap. Large request bodies can therefore be buffered completely into process memory before parsing, leading to denial of service (DoS) through memory exhaustion. Users should upgrade to Rack version 2.2.20, 3.1.18, or 3.2.3, anu of which enforces form parameter limits using `query_parser.bytesize_limit`, preventing unbounded reads of `application/x-www-form-urlencoded` bodies. Additionally, enforce strict maximum body size at the proxy or web server layer (e.g., Nginx `client_max_body_size`, Apache `LimitRequestBody`)."
                }
            ],
            "source": {
                "advisory": "GHSA-6xw4-3v39-52mm",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-10-10T20:48:10.264464Z",
                                "id": "CVE-2025-61919",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-10-10T20:48:20.240Z"
                }
            }
        ]
    }
}