{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-21653",
        "STATE": "PUBLIC",
        "TITLE": "Hash collision in typelevel jawn"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "jawn",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 1.3.2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "typelevel"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Jawn is an open source JSON parser. Extenders of the `org.typelevel.jawn.SimpleFacade` and `org.typelevel.jawn.MutableFacade` who don't override `objectContext()` are vulnerable to a hash collision attack which may result in a denial of service. Most applications do not implement these traits directly, but inherit from a library. `jawn-parser-1.3.1` fixes this issue and users are advised to upgrade. For users unable to upgrade override `objectContext()` to use a collision-safe collection."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-400: Uncontrolled Resource Consumption"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/typelevel/jawn/security/advisories/GHSA-vc89-hccf-rq55",
                "refsource": "CONFIRM",
                "url": "https://github.com/typelevel/jawn/security/advisories/GHSA-vc89-hccf-rq55"
            },
            {
                "name": "https://github.com/typelevel/jawn/pull/390",
                "refsource": "MISC",
                "url": "https://github.com/typelevel/jawn/pull/390"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-vc89-hccf-rq55",
        "discovery": "UNKNOWN"
    }
}