{"schema_version": "1.7.0", "id": "RLSA-2026:0026", "modified": "2026-01-05T09:04:24.832325Z", "published": "2026-01-05T09:02:30.667096Z", "upstream": ["CVE-2025-14321", "CVE-2025-14322", "CVE-2025-14323", "CVE-2025-14324", "CVE-2025-14325", "CVE-2025-14328", "CVE-2025-14329", "CVE-2025-14330", "CVE-2025-14331", "CVE-2025-14333"], "summary": "Important: thunderbird security update", "details": "Mozilla Thunderbird is a standalone mail and newsgroup client.\n\nSecurity Fix(es):\n\n* firefox: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146 (CVE-2025-14333)\n\n* firefox: Use-after-free in the WebRTC: Signaling component (CVE-2025-14321)\n\n* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14325)\n\n* firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2025-14322)\n\n* firefox: Privilege escalation in the Netmonitor component (CVE-2025-14328)\n\n* firefox: Privilege escalation in the Netmonitor component (CVE-2025-14329)\n\n* firefox: Same-origin policy bypass in the Request Handling component (CVE-2025-14331)\n\n* firefox: Privilege escalation in the DOM: Notifications component (CVE-2025-14323)\n\n* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14330)\n\n* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14324)\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:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:8", "name": "thunderbird", "purl": "pkg:rpm/rocky-linux/thunderbird?distro=rocky-linux-8&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:140.6.0-1.el8_10"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:0026"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420502"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420503"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420504"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420506"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420508"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420509"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420512"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420513"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420516"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420517"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}]}