{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-22465",
        "ASSIGNER": "security-advisories@github.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Http4s is a Scala interface for HTTP services. Starting with version 0.1.0 and prior to versions 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38, the `User-Agent` and `Server` header parsers are susceptible to a fatal error on certain inputs. In http4s, modeled headers are lazily parsed, so this only applies to services that explicitly request these typed headers. Fixes are released in 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38. As a workaround, use the weakly typed header interface."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20: Improper Input Validation",
                        "cweId": "CWE-20"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "http4s",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "http4s",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": ">= 0.1.0, < 0.21.34",
                                            "version_affected": "="
                                        },
                                        {
                                            "version_value": ">= 0.22.0, < 0.22.15",
                                            "version_affected": "="
                                        },
                                        {
                                            "version_value": ">= 0.23.0, < 0.23.17",
                                            "version_affected": "="
                                        },
                                        {
                                            "version_value": ">= 1.0.0-M1, < 1.0.0-M38",
                                            "version_affected": "="
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://github.com/http4s/http4s/security/advisories/GHSA-54w6-vxfh-fw7f",
                "refsource": "MISC",
                "name": "https://github.com/http4s/http4s/security/advisories/GHSA-54w6-vxfh-fw7f"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-54w6-vxfh-fw7f",
        "discovery": "UNKNOWN"
    },
    "impact": {
        "cvss": [
            {
                "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"
            }
        ]
    }
}