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{"bugzilla": {"description": "firefox: JIT miscompilation in the JavaScript Engine: JIT component", "id": "2476466", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476466"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-733", "details": ["A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:\nJIT miscompilation in the JavaScript Engine: JIT component"], "name": "CVE-2026-8389", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "rhel10/firefox-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-12T12:36:12Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-8389\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-8389\nhttps://www.mozilla.org/security/advisories/mfsa2026-45/#CVE-2026-8389"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Important"}

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