{"id":"ALSA-2025:4797","summary":"Important: thunderbird security update","details":"Mozilla Thunderbird is a standalone mail and newsgroup client.  \n\nSecurity Fix(es):  \n\n  * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)\n  * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)\n  * firefox: thunderbird: Process isolation bypass using \"javascript:\" URI links in cross-origin frames (CVE-2025-4083)\n  * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10 (CVE-2025-4091)\n  * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10 (CVE-2025-4093)\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":"2026-02-04T02:18:48.735606Z","published":"2025-05-12T00:00:00Z","related":["CVE-2025-2817","CVE-2025-4083","CVE-2025-4087","CVE-2025-4091","CVE-2025-4093"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2025:4797"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-2817"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-4083"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-4087"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-4091"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-4093"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2362902"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2362904"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2362907"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2362912"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2362915"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2025-4797.html"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/thunderbird"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"128.10.0-1.el8_10.alma.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2025:4797.json"}}],"schema_version":"1.7.3"}