{"schema_version": "1.7.0", "id": "RLSA-2026:89756", "modified": "2026-10-31T12:13:53.940548Z", "published": "2026-10-31T12:01:20.904461Z", "upstream": ["CVE-2026-109704", "CVE-2026-109705", "CVE-2026-109706", "CVE-2026-109707", "CVE-2026-109708", "CVE-2026-109709", "CVE-2026-109711", "CVE-2026-109712", "CVE-2026-109713", "CVE-2026-109715", "CVE-2026-109716", "CVE-2026-109717", "CVE-2026-109718", "CVE-2026-109719", "CVE-2026-109720", "CVE-2026-109721", "CVE-2026-109722", "CVE-2026-109723", "CVE-2026-109724", "CVE-2026-109725", "CVE-2026-109726", "CVE-2026-109727", "CVE-2026-109728", "CVE-2026-109729", "CVE-2026-109730", "CVE-2026-109732", "CVE-2026-109733", "CVE-2026-109736", "CVE-2026-109737", "CVE-2026-109738", "CVE-2026-109740", "CVE-2026-109741", "CVE-2026-109742", "CVE-2026-109743", "CVE-2026-109744", "CVE-2026-109745", "CVE-2026-109751", "CVE-2026-109752", "CVE-2026-109753", "CVE-2026-109782", "CVE-2026-45186"], "summary": "Important: firefox security, bug fix, and enhancement update", "details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nSecurity Fix(es):\n\n* libexpat: denial of service via crafted XML input (CVE-2026-45186)\n\n* firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)\n\n* firefox: Use-after-free in the XML component (CVE-2026-109718)\n\n* firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)\n\n* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)\n\n* firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)\n\n* firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)\n\n* firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)\n\n* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)\n\n* firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)\n\n* firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)\n\n* firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component (CVE-2026-109709)\n\n* firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component (CVE-2026-109705)\n\n* firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)\n\n* firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)\n\n* firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)\n\n* firefox: Other issue in the DOM: File component (CVE-2026-109744)\n\n* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)\n\n* firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)\n\n* firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)\n\n* firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)\n\n* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)\n\n* firefox: Sandbox escape due to incorrect boundary conditions in the Networking component (CVE-2026-109708)\n\n* firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)\n\n* firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)\n\n* firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)\n\n* firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)\n\n* firefox: Use-after-free in the SVG component (CVE-2026-109726)\n\n* firefox: Integer overflow in the Graphics component (CVE-2026-109730)\n\n* firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)\n\n* firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)\n\n* firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)\n\n* firefox: Information disclosure in the Networking component (CVE-2026-109751)\n\n* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)\n\n* firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)\n\n* firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)\n\n* firefox: Frame poisoning in the Layout component (CVE-2026-109736)\n\n* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)\n\n* firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)\n\n* firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)\n\n* firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)\n\nBug Fix(es) and Enhancement(s):\n\n* Firefox ESR 153 rebase [rhel-8.10.z] (JIRA:Rocky Linux-175143)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:8", "name": "firefox", "purl": "pkg:rpm/rocky-linux/firefox?distro=rocky-linux-8&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:153.5.0-1.el8_10"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:89756"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468575"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550397"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550400"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550401"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550403"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550404"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550405"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550406"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550408"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550410"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550411"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550412"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550413"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550417"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550419"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550420"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550421"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550422"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550424"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550425"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550426"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550429"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550432"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550433"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550434"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550438"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550442"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550446"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550450"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550451"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550452"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550455"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550465"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550467"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550468"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550469"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550470"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550471"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550474"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550478"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550480"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:89756"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:89756"}}