{"id":"ALSA-2026:68549","summary":"Important: firefox security update","details":"Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.  \n\nSecurity Fix(es):  \n\n  * firefox: thunderbird: Privilege escalation in the DOM: Workers component (CVE-2026-16365)\n  * firefox: thunderbird: Sandbox escape in the Remote Settings Client component (CVE-2026-75874)\n  * firefox: Sandbox escape due to use-after-free in the DOM: Security component (CVE-2026-84121)\n  * firefox: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40 (CVE-2026-84145)\n  * firefox: Sandbox escape due to use-after-free in the DOM: Navigation component (CVE-2026-84119)\n  * firefox: Use-after-free in the Audio/Video component (CVE-2026-84120)\n  * firefox: Privilege escalation due to invalid pointer in the Graphics component (CVE-2026-84131)\n  * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-84124)\n  * firefox: Use-after-free in the Audio/Video component (CVE-2026-84122)\n  * firefox: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15 (CVE-2026-84143)\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":"2026-09-23T15:11:40.062194610Z","published":"2026-09-17T00:00:00Z","related":["CVE-2026-16365","CVE-2026-75874","CVE-2026-84119","CVE-2026-84120","CVE-2026-84121","CVE-2026-84122","CVE-2026-84124","CVE-2026-84131","CVE-2026-84143","CVE-2026-84145"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:68549"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-16365"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-75874"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84119"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84120"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84121"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84122"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84124"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84131"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84143"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-84145"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2503504"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2517832"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2526753"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2526760"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2526764"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2526765"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2526767"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2526778"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2526781"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-68549.html"}],"affected":[{"package":{"name":"firefox","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/firefox"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.15.0-1.el8_10.alma.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:68549.json"}}],"schema_version":"1.9.0"}