{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84142", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-09-01T07:26:00.760Z", "datePublished": "2026-09-01T12:19:09.109Z", "dateUpdated": "2026-09-01T12:19:09.109Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "155", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "Internally found bugs present in Firefox 154. 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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Internally found bugs present in Firefox 154. 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."}]}], "title": "Internally found bugs fixed in Firefox 155", "references": [{"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2029421%2C2040889%2C2045313%2C2045435%2C2053578%2C2058621%2C2058626", "name": "Moderate Severity internally found bugs fixed in Firefox 155"}, {"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2048796%2C2053150%2C2057356", "name": "Low Severity internally found bugs fixed in Firefox 155"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-82/"}], "credits": [{"lang": "en", "value": "Alexandre Poirot, Christian Holler, Sebastian Hengst and the Mozilla Fuzzing Team"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-09-01T12:19:09.109Z"}}}}

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