{"id":"ALSA-2026:7671","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  * libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)\n  * libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)\n  * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)\n  * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)\n  * firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)\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":"2026-04-17T13:29:17.777007353Z","published":"2026-04-13T00:00:00Z","related":["CVE-2026-33416","CVE-2026-33636","CVE-2026-5731","CVE-2026-5732","CVE-2026-5734"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:7671"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-33416"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-33636"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-5731"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-5732"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-5734"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2451805"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2451819"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2455897"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2455901"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2455908"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-7671.html"}],"affected":[{"package":{"name":"firefox","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/firefox"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.9.1-1.el9_7.alma.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:7671.json"}},{"package":{"name":"firefox-x11","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/firefox-x11"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.9.1-1.el9_7.alma.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:7671.json"}}],"schema_version":"1.7.5"}