{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-12321", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-06-15T15:08:19.456Z", "datePublished": "2026-06-16T11:52:54.784Z", "dateUpdated": "2026-06-16T11:52:54.784Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "152", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152."}]}], "title": "JIT miscompilation in the JavaScript: WebAssembly component", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2032943"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-57/"}], "credits": [{"lang": "en", "value": "JunYoung Park"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-06-16T11:52:54.784Z"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152."}], "id": "CVE-2026-12321", "lastModified": "2026-06-16T14:51:31.350", "metrics": {}, "published": "2026-06-16T13:16:32.823", "references": [{"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2032943"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-57/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Undergoing Analysis"}

{}

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