{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-35923",
        "STATE": "PUBLIC",
        "TITLE": "Inefficient Regular Expression Complexity in v8n"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "v8n",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 1.5.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "imbrn"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of 'a' + 'a'.repeat(i) + 'A' with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue."
            }
        ]
    },
    "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"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-400: Uncontrolled Resource Consumption"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/imbrn/v8n/security/advisories/GHSA-xrx9-gj26-5wx9",
                "refsource": "CONFIRM",
                "url": "https://github.com/imbrn/v8n/security/advisories/GHSA-xrx9-gj26-5wx9"
            },
            {
                "name": "https://github.com/imbrn/v8n/commit/92393862156fad190c05ec3f6e2bc73308dcd2f9",
                "refsource": "MISC",
                "url": "https://github.com/imbrn/v8n/commit/92393862156fad190c05ec3f6e2bc73308dcd2f9"
            },
            {
                "name": "https://huntr.dev/bounties/2d92f644-593b-43b4-bfd1-c8042ac60609/",
                "refsource": "MISC",
                "url": "https://huntr.dev/bounties/2d92f644-593b-43b4-bfd1-c8042ac60609/"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-xrx9-gj26-5wx9",
        "discovery": "UNKNOWN"
    }
}