{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-4235",
        "ASSIGNER": "security@golang.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE 400: Uncontrolled Resource Consumption"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "gopkg.in/yaml.v2",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "gopkg.in/yaml.v2",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "0",
                                            "version_value": "2.2.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                },
                {
                    "vendor_name": "github.com/go-yaml/yaml",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "github.com/go-yaml/yaml",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://github.com/go-yaml/yaml/pull/375",
                "refsource": "MISC",
                "name": "https://github.com/go-yaml/yaml/pull/375"
            },
            {
                "url": "https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241",
                "refsource": "MISC",
                "name": "https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241"
            },
            {
                "url": "https://pkg.go.dev/vuln/GO-2021-0061",
                "refsource": "MISC",
                "name": "https://pkg.go.dev/vuln/GO-2021-0061"
            },
            {
                "url": "https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html",
                "refsource": "MISC",
                "name": "https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html"
            }
        ]
    },
    "credits": [
        {
            "lang": "en",
            "value": "@simonferquel"
        }
    ]
}