{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-100809", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-09-26T19:18:06.677Z", "datePublished": "2026-09-29T12:36:23.516Z", "dateUpdated": "2026-09-29T12:36:23.516Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "153.4", "lessThanOrEqual": "153.*", "versionType": "rpm"}, {"status": "unaffected", "version": "157", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157."}]}], "title": "Same-origin policy bypass in the DevTools component", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2063658"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-100/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"}], "credits": [{"lang": "en", "value": "Finn Westendorf"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-09-29T12:36:23.516Z"}}}}

{}

{"affected": [{"affectedData": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThanOrEqual": "153.*", "status": "unaffected", "version": "153.4", "versionType": "rpm"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "157", "versionType": "rpm"}]}], "source": "security@mozilla.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157."}], "id": "CVE-2026-100809", "lastModified": "2026-09-29T13:17:46.023", "metrics": {}, "published": "2026-09-29T13:17:46.023", "references": [{"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2063658"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-100/"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Received"}

{}

{}