{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84144", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-09-01T07:26:01.858Z", "datePublished": "2026-09-01T12:19:11.104Z", "dateUpdated": "2026-09-01T12:19:11.104Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "153.2", "lessThanOrEqual": "153.*", "versionType": "rpm"}, {"status": "unaffected", "version": "155", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "Internally found bugs present in Firefox 154 and Firefox ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Internally found bugs present in Firefox 154 and Firefox ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2."}]}], "title": "Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2", "references": [{"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2054619%2C2054620%2C2054624%2C2054702%2C2054726%2C2054775%2C2055703%2C2058006%2C2058013%2C2058098%2C2058627%2C2058661%2C2059127%2C2059128%2C2059180%2C2059199%2C2059205%2C2061320%2C2061430%2C2061495%2C2061505%2C2061532%2C2061799", "name": "Moderate Severity internally found bugs fixed in Firefox 155 and Firefox ESR 153.2"}, {"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2054625%2C2059002%2C2061775", "name": "High Severity internally found bugs fixed in Firefox 155 and Firefox ESR 153.2"}, {"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2054691%2C2058085%2C2059144%2C2059191%2C2059192%2C2061521%2C2062395%2C2062404", "name": "Low Severity internally found bugs fixed in Firefox 155 and Firefox ESR 153.2"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-82/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-85/"}], "credits": [{"lang": "en", "value": "Leo Tenenbaum, Tom Ritter and the Mozilla Fuzzing Team"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-09-01T12:19:11.104Z"}}}}

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