{"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": {"providerMetadata": {"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"}]}], "credits": [{"lang": "en", "value": "Khael Kugler", "type": "finder"}, {"lang": "en", "value": "todb of AHA!", "type": "coordinator"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Unreal Engine", "vendor": "Epic Games", "versions": [{"lessThanOrEqual": "5.8.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "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)."}], "id": "CVE-2026-14765", "lastModified": "2026-10-14T03:17:21.927", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 6.0, "source": "[email protected]", "type": "Secondary"}], "ssvcV203": [{"source": "[email protected]", "ssvcData": {"options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CNA", "version": "2.0.3"}}]}, "published": "2026-10-14T03:17:21.927", "references": [{"source": "[email protected]", "url": "https://khaelkugler.com/blogs/meccha_chameleon.html"}, {"source": "[email protected]", "url": "https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000001011111111101111111111110000000000000000000000000000000000000000000000000000001011"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1188"}], "source": "[email protected]", "type": "Secondary"}]}

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