CVE-2026-50544

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-50544", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-04T20:37:18.653Z", "datePublished": "2026-08-12T23:18:03.735Z", "dateUpdated": "2026-08-14T22:23:47.703Z"}, "containers": {"cna": {"title": "NortheBridge/luminalshine has Incorrect Permission Assignment for Critical Resource and Creation of Temporary File in Directory with Insecure Permissions", "problemTypes": [{"descriptions": [{"cweId": "CWE-379", "lang": "en", "description": "CWE-379: Creation of Temporary File in Directory with Insecure Permissions", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-732", "lang": "en", "description": "CWE-732: Incorrect Permission Assignment for Critical Resource", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/NortheBridge/luminalshine/security/advisories/GHSA-52q6-5x97-2747", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/NortheBridge/luminalshine/security/advisories/GHSA-52q6-5x97-2747"}], "affected": [{"vendor": "NortheBridge", "product": "luminalshine", "versions": [{"version": "< 26.05.0-rc4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-12T23:18:03.735Z"}, "descriptions": [{"lang": "en", "value": "NortheBridge/luminalshine is a Sunshine-compatible game stream host for Moonlight. Prior to version 26.05.0-rc4, a latent gap exists on a default install, the file at `src/platform/windows/misc.cpp` lives at `C:\\ProgramData\\LuminalShine\\config\\apps.json` and is created by the `SYSTEM` service. Under Windows' default `C:\\ProgramData` inheritance, that gives `BUILTIN\\Users` only Read+Execute \u2014 not writable \u2014 so the canonical EoP doesn't actually trigger on a vanilla install. Version 26.05.0-rc4 contains a patch for the issue. As a workaround, use default condition DACLs for `ProgramData`."}], "source": {"advisory": "GHSA-52q6-5x97-2747", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-14T22:23:37.675303Z", "id": "CVE-2026-50544", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-14T22:23:47.703Z"}}]}}

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{"affected": [{"affectedData": [{"product": "luminalshine", "vendor": "NortheBridge", "versions": [{"status": "affected", "version": "< 26.05.0-rc4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "NortheBridge/luminalshine is a Sunshine-compatible game stream host for Moonlight. Prior to version 26.05.0-rc4, a latent gap exists on a default install, the file at `src/platform/windows/misc.cpp` lives at `C:\\ProgramData\\LuminalShine\\config\\apps.json` and is created by the `SYSTEM` service. Under Windows' default `C:\\ProgramData` inheritance, that gives `BUILTIN\\Users` only Read+Execute \u2014 not writable \u2014 so the canonical EoP doesn't actually trigger on a vanilla install. Version 26.05.0-rc4 contains a patch for the issue. As a workaround, use default condition DACLs for `ProgramData`."}, {"lang": "es", "value": "NortheBridge/luminalshine es un host de transmisi\u00f3n de juegos compatible con Sunshine para Moonlight. Antes de la versi\u00f3n 26.05.0-rc4, existe una brecha latente en una instalaci\u00f3n predeterminada: el archivo en \u2019src/platform/windows/misc.cpp\u2019 reside en \u2019C:\\ProgramData\\LuminalShine\\config\\apps.json\u2019 y es creado por el servicio \u2019SYSTEM\u2019. Bajo la herencia predeterminada de Windows para \u2019C:\\ProgramData\u2019, eso otorga a \u2019BUILTIN\\Users\u2019 solo permisos de Lectura+Ejecuci\u00f3n - no de escritura - por lo que la EoP can\u00f3nica no se activa realmente en una instalaci\u00f3n limpia. La versi\u00f3n 26.05.0-rc4 contiene un parche para el problema. Como soluci\u00f3n alternativa, utilice DACL de condici\u00f3n predeterminada para \u2019ProgramData\u2019."}], "id": "CVE-2026-50544", "lastModified": "2026-10-24T16:10:00.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.3, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-50544", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-14T22:23:37.675303Z", "version": "2.0.3"}}]}, "published": "2026-08-13T00:17:32.930", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/NortheBridge/luminalshine/security/advisories/GHSA-52q6-5x97-2747"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-379"}, {"lang": "en", "value": "CWE-732"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,26.05.0-rc4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "luminalshine", "source": "cna", "vendor": "NortheBridge"}, "product": "luminalshine", "vendor": "northebridge"}], "created": "2026-08-13T02:00:13.140390+00:00", "updated": "2026-08-13T09:47:30.137367+00:00", "vendors": ["northebridge", "northebridge$PRODUCT$luminalshine"]}