{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41539", "assignerOrgId": "2fd009eb-170a-4625-932b-17a53af1051f", "state": "PUBLISHED", "assignerShortName": "qnap", "dateReserved": "2026-04-21T03:07:17.287Z", "datePublished": "2026-06-09T05:51:37.054Z", "dateUpdated": "2026-06-09T05:51:37.054Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "QTS", "vendor": "QNAP Systems Inc.", "versions": [{"lessThan": "5.2.9.3492 build 20260507", "status": "affected", "version": "5.2.0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "QuTS hero", "vendor": "QNAP Systems Inc.", "versions": [{"lessThan": "h5.2.9.3499 build 20260514", "status": "affected", "version": "h5.2.0", "versionType": "custom"}, {"lessThan": "h5.3.4.3500 build 20260520", "status": "affected", "version": "h5.3.0", "versionType": "custom"}, {"lessThan": "h6.0.0.3500 build 20260520", "status": "affected", "version": "?", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.<br><br>We have already fixed the vulnerability in the following versions:<br>QTS 5.2.9.3492 build 20260507 and later<br>QuTS hero h5.2.9.3499 build 20260514 and later<br>QuTS hero h5.3.4.3500 build 20260520 and later<br>QuTS hero h6.0.0.3500 build 20260520 and later<br>"}], "value": "A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3492 build 20260507 and later\nQuTS hero h5.2.9.3499 build 20260514 and later\nQuTS hero h5.3.4.3500 build 20260520 and later\nQuTS hero h6.0.0.3500 build 20260520 and later"}], "impacts": [{"capecId": "CAPEC-63", "descriptions": [{"lang": "en", "value": "CAPEC-63"}]}], "metrics": [{"cvssV4_0": {"attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "exploitMaturity": "UNREPORTED", "privilegesRequired": "NONE", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "CWE-79", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "2fd009eb-170a-4625-932b-17a53af1051f", "shortName": "qnap", "dateUpdated": "2026-06-09T05:51:37.054Z"}, "references": [{"url": "https://www.qnap.com/en/security-advisory/qsa-26-31"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "We have already fixed the vulnerability in the following versions:<br>QTS 5.2.9.3492 build 20260507 and later<br>QuTS hero h5.2.9.3499 build 20260514 and later<br>QuTS hero h5.3.4.3500 build 20260520 and later<br>QuTS hero h6.0.0.3500 build 20260520 and later<br>"}], "value": "We have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3492 build 20260507 and later\nQuTS hero h5.2.9.3499 build 20260514 and later\nQuTS hero h5.3.4.3500 build 20260520 and later\nQuTS hero h6.0.0.3500 build 20260520 and later"}], "source": {"advisory": "QSA-26-31", "discovery": "EXTERNAL"}, "title": "QTS, QuTS hero", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3492 build 20260507 and later\nQuTS hero h5.2.9.3499 build 20260514 and later\nQuTS hero h5.3.4.3500 build 20260520 and later\nQuTS hero h6.0.0.3500 build 20260520 and later"}], "id": "CVE-2026-41539", "lastModified": "2026-06-09T06:16:53.413", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@qnapsecurity.com.tw", "type": "Secondary"}]}, "published": "2026-06-09T06:16:53.413", "references": [{"source": "security@qnapsecurity.com.tw", "url": "https://www.qnap.com/en/security-advisory/qsa-26-31"}], "sourceIdentifier": "security@qnapsecurity.com.tw", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@qnapsecurity.com.tw", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.2.0,5.2.9.3492 build 20260507)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "QTS", "source": "cna", "vendor": "QNAP Systems Inc."}, "product": "qts", "vendor": "qnap_systems_inc."}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[h5.2.0,h5.2.9.3499 build 20260514)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[h5.3.0,h5.3.4.3500 build 20260520)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,h6.0.0.3500 build 20260520)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "QuTS hero", "source": "cna", "vendor": "QNAP Systems Inc."}, "product": "quts_hero", "vendor": "qnap_systems_inc."}], "created": "2026-06-09T07:30:25.944006+00:00", "updated": "2026-06-09T07:30:25.944062+00:00", "vendors": ["qnap_systems_inc.", "qnap_systems_inc.$PRODUCT$qts", "qnap_systems_inc.$PRODUCT$quts_hero"]}