{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-14765",
        "assignerOrgId": "26969f82-7e87-44d8-9cb5-f6fb926ddd43",
        "state": "PUBLISHED",
        "assignerShortName": "AHA",
        "dateReserved": "2026-07-04T17:45:14.357Z",
        "datePublished": "2026-10-14T02:31:08.607Z",
        "dateUpdated": "2026-10-14T02:31:08.607Z"
    },
    "containers": {
        "cna": {
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                "orgId": "26969f82-7e87-44d8-9cb5-f6fb926ddd43",
                "shortName": "AHA",
                "dateUpdated": "2026-10-14T02:31:08.607Z"
            },
            "title": "Epic Games Unreal Engine Insecure Default URL Scheme Allowance in LaunchURL",
            "datePublic": "2026-10-14T02:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-1188",
                            "description": "CWE-1188 Initialization of a Resource with an Insecure Default",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Epic Games",
                    "product": "Unreal Engine",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "5.8.0",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Epic Games Unreal Engine versions up to and including 5.8.0 ship with an insecure default configuration for the LaunchURL Blueprint node (UKismetSystemLibrary::LaunchURL). The URL scheme filter (FURLRequestFilter) is empty by default, which permits all URL schemes. On Windows, this results in a call to ShellExecuteW() with the open verb, so a supplied file:/// URI causes the referenced file to be executed. Any Unreal Engine game that loads user-generated content containing Blueprints is vulnerable to command execution via a malicious local file or a remote file on a WebDAV share. This is an instance of CWE-1188 (Initialization of a Resource with an Insecure Default).",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "Epic Games Unreal Engine versions up to and including 5.8.0 ship with an insecure default configuration for the LaunchURL Blueprint node (UKismetSystemLibrary::LaunchURL). The URL scheme filter (FURLRequestFilter) is empty by default, which permits all URL schemes. On Windows, this results in a call to ShellExecuteW() with the open verb, so a supplied file:/// URI causes the referenced file to be executed. Any Unreal Engine game that loads user-generated content containing Blueprints is vulnerable to command execution via a malicious local file or a remote file on a WebDAV share. This is an instance of CWE-1188 (Initialization of a Resource with an Insecure Default)."
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://khaelkugler.com/blogs/meccha_chameleon.html",
                    "tags": [
                        "related"
                    ]
                },
                {
                    "url": "https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000001011111111101111111111110000000000000000000000000000000000000000000000000000001011",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "LOCAL",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "REQUIRED",
                        "scope": "CHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseSeverity": "HIGH",
                        "baseScore": 7.7,
                        "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                    }
                },
                {
                    "other": {
                        "type": "ssvc",
                        "content": {
                            "options": [
                                {
                                    "Exploitation": "poc"
                                },
                                {
                                    "Automatable": "yes"
                                },
                                {
                                    "Technical Impact": "total"
                                }
                            ],
                            "role": "CNA",
                            "version": "2.0.3"
                        }
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
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            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Khael Kugler",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "todb of AHA!",
                    "type": "coordinator"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
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}