{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8389", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-05-12T12:36:11.734Z", "datePublished": "2026-05-12T12:36:12.516Z", "dateUpdated": "2026-05-12T12:36:12.516Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "150.0.3", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3."}]}], "title": "JIT miscompilation in the JavaScript Engine: JIT component", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2036983"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-45/"}], "credits": [{"lang": "en", "value": "ggwhyp"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-05-12T12:36:12.516Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3."}], "id": "CVE-2026-8389", "lastModified": "2026-05-12T14:20:56.547", "metrics": {}, "published": "2026-05-12T14:17:11.930", "references": [{"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2036983"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-45/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[150.0.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Firefox", "source": "cna", "vendor": "Mozilla"}, "product": "firefox", "vendor": "mozilla"}], "created": "2026-05-12T14:45:17.479537+00:00", "updated": "2026-05-12T16:00:13.364746+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$firefox"], "weaknesses": ["CWE-787"]}