{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8947", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-05-19T12:29:37.072Z", "datePublished": "2026-05-19T12:29:37.800Z", "dateUpdated": "2026-05-19T17:10:46.663Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "115.36", "lessThanOrEqual": "115.*", "versionType": "rpm"}, {"status": "unaffected", "version": "140.11", "lessThanOrEqual": "140.*", "versionType": "rpm"}, {"status": "unaffected", "version": "151", "lessThanOrEqual": "*", "versionType": "rpm"}]}, {"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "140.11", "lessThanOrEqual": "140.*", "versionType": "rpm"}, {"status": "unaffected", "version": "151", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11."}]}], "title": "Use-after-free in the DOM: Bindings (WebIDL) component", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2038439"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-46/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-47/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-48/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-50/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-51/"}], "credits": [{"lang": "en", "value": "Satoki Tsuji"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-05-19T17:10:46.663Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-416", "lang": "en", "description": "CWE-416 Use After Free"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-05-19T14:14:49.904157Z", "id": "CVE-2026-8947", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-19T14:15:12.387Z"}}]}}