{"id":"ALSA-2026:90895","summary":"Important: thunderbird security, bug fix, and enhancement update","details":"Mozilla Thunderbird is a standalone mail and newsgroup client.  \n\nSecurity Fix(es):  \n\n  * libexpat: denial of service via crafted XML input (CVE-2026-45186)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * Thunderbird ESR 153 rebase [rhel-10.2.z] (JIRA:RHEL-175207)\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":"2026-10-29T11:31:03.390460731Z","published":"2026-10-27T00:00:00Z","related":["CVE-2026-45186"],"upstream":["CVE-2026-45186"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:90895"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-45186"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2468575"},{"type":"ADVISORY","url":"https://errata.almalinux.org/10/ALSA-2026-90895.html"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/thunderbird"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"153.5.0-1.el10_2.alma.1"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:90895.json"}}],"schema_version":"1.9.2"}