{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53899", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-06-11T06:20:46.257Z", "datePublished": "2026-06-16T11:53:04.805Z", "dateUpdated": "2026-06-16T11:53:04.805Z"}, "containers": {"cna": {"affected": [{"product": "Firefox for iOS", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "152.0", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0."}]}], "title": "Cross-origin cookies could be leaked when opening a PDF link", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2042909"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-56/"}], "credits": [{"lang": "en", "value": "Muneaki Nishimura"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-06-16T11:53:04.805Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0."}], "id": "CVE-2026-53899", "lastModified": "2026-06-16T13:16:37.420", "metrics": {}, "published": "2026-06-16T13:16:37.420", "references": [{"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2042909"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-56/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Received"}

{}

{}