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{"bugzilla": {"description": "firefox: firefox: Sandbox escape via use-after-free in DOM component", "id": "2543154", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543154"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17.", "A flaw was found in Firefox. A use-after-free memory flaw in the Document Object Model (DOM) Core and HTML component allows a remote attacker to perform a sandbox escape. By enticing a user to visit a specially crafted web page, an attacker can leverage this vulnerability to execute arbitrary code outside the browser's restricted sandbox environment."], "name": "CVE-2026-100811", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-09-29T12:36:24Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-100811\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-100811\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=2067973\nhttps://www.mozilla.org/security/advisories/mfsa2026-100/\nhttps://www.mozilla.org/security/advisories/mfsa2026-97/\nhttps://www.mozilla.org/security/advisories/mfsa2026-99/"], "threat_severity": "Important"}