{"schema_version": "1.7.0", "id": "RLSA-2026:90895", "modified": "2026-10-29T12:12:34.306946Z", "published": "2026-10-29T12:08:23.381701Z", "upstream": ["CVE-2026-45186"], "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\nBug Fix(es) and Enhancement(s):\n\n* Thunderbird ESR 153 rebase [rhel-10.2.z] (JIRA:Rocky Linux-175207)\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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:10", "name": "thunderbird", "purl": "pkg:rpm/rocky-linux/thunderbird?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:153.5.0-1.el10_2"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:90895"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468575"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:90895"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:90895"}}