{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120987", "assignerOrgId": "f9629fae-ca2e-4fbf-9785-3ed86476aef6", "state": "PUBLISHED", "assignerShortName": "naver", "dateReserved": "2026-11-03T06:34:49.544Z", "datePublished": "2026-11-03T06:42:16.816Z", "dateUpdated": "2026-11-03T06:42:16.816Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f9629fae-ca2e-4fbf-9785-3ed86476aef6", "shortName": "naver", "dateUpdated": "2026-11-03T06:42:16.816Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-346", "description": "CWE-346 Origin Validation Error", "type": "CWE"}]}], "affected": [{"vendor": "NAVER", "product": "NAVER Whale browser", "versions": [{"status": "unaffected", "version": "5.39.412.57"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "Whale Browser before 5.39.412.57 allows an attacker to bypass the iframe sandbox in a dual-tab environment.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Whale Browser before 5.39.412.57 allows an attacker to bypass the iframe sandbox in a dual-tab environment."}]}], "references": [{"url": "https://cve.naver.com/detail/cve-2026-120987.html", "tags": ["vendor-advisory"]}], "credits": [{"lang": "en", "value": "Namhyeong Kim (fivehong)", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "NAVER Whale browser", "vendor": "NAVER", "versions": [{"status": "unaffected", "version": "5.39.412.57"}]}], "source": "cve@navercorp.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Whale Browser before 5.39.412.57 allows an attacker to bypass the iframe sandbox in a dual-tab environment."}], "id": "CVE-2026-120987", "lastModified": "2026-11-03T07:18:21.527", "metrics": {}, "published": "2026-11-03T07:18:21.527", "references": [{"source": "cve@navercorp.com", "url": "https://cve.naver.com/detail/cve-2026-120987.html"}], "sourceIdentifier": "cve@navercorp.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-346"}], "source": "cve@navercorp.com", "type": "Secondary"}]}

{}

{"created": "2026-11-03T07:30:09.085670+00:00", "title": "Bypass of iframe sandbox in dual\u2011tab environment", "updated": "2026-11-03T07:30:09.085686+00:00", "vendors": []}