{"id":"ALSA-2026:89757","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  * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)\n  * firefox: Use-after-free in the XML component (CVE-2026-109718)\n  * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)\n  * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)\n  * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)\n  * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)\n  * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)\n  * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)\n  * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)\n  * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)\n  * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component (CVE-2026-109709)\n  * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component (CVE-2026-109705)\n  * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)\n  * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)\n  * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)\n  * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)\n  * firefox: Other issue in the DOM: File component (CVE-2026-109744)\n  * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)\n  * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)\n  * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)\n  * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)\n  * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)\n  * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)\n  * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)\n  * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component (CVE-2026-109708)\n  * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)\n  * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)\n  * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)\n  * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)\n  * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)\n  * firefox: Use-after-free in the SVG component (CVE-2026-109726)\n  * firefox: Integer overflow in the Graphics component (CVE-2026-109730)\n  * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)\n  * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)\n  * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)\n  * firefox: Site isolation issue in the Networking component (CVE-2026-109759)\n  * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)\n  * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)\n  * firefox: Information disclosure in the Networking component (CVE-2026-109751)\n  * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)\n  * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)\n  * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)\n  * firefox: Frame poisoning in the Layout component (CVE-2026-109736)\n  * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)\n  * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)\n  * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)\n  * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * Firefox ESR 153 rebase [rhel-9.8.z] (JIRA:RHEL-175155)\n\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.\n","modified":"2026-11-01T13:45:02.402434270Z","published":"2026-10-26T00:00:00Z","related":["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-2026-109754","CVE-2026-109756","CVE-2026-109757","CVE-2026-109759","CVE-2026-109760","CVE-2026-109762","CVE-2026-109763","CVE-2026-109782","CVE-2026-45186"],"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-2026-109754","CVE-2026-109756","CVE-2026-109757","CVE-2026-109759","CVE-2026-109760","CVE-2026-109762","CVE-2026-109763","CVE-2026-109782","CVE-2026-45186"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:89757"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109704"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109705"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109706"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109707"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109708"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109709"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109711"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109712"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109713"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109715"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109716"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109717"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109718"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109719"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109720"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109721"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109722"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109723"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109724"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109725"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109726"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109727"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109728"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109729"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109730"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109732"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109733"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109736"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109737"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109738"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109740"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109741"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109742"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109743"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109744"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109745"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109751"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109752"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109753"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109754"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109756"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109757"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109759"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109760"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109762"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109763"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-109782"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-45186"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2468575"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550397"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550404"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550405"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550413"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550419"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550420"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550424"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550433"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550438"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550446"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550451"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2550455"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-89757.html"}],"affected":[{"package":{"name":"firefox","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/firefox"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"153.5.0-1.el9_8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:89757.json"}},{"package":{"name":"firefox-x11","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/firefox-x11"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"153.5.0-1.el9_8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:89757.json"}}],"schema_version":"1.9.2"}