Home / mailings [SECURITY] [DSA 6585-1] thunderbird security update
Posted on 25 October 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6585-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
October 25, 2026 https://www.debian.org/security/faq
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Package : thunderbird
CVE ID : CVE-2026-109705 CVE-2026-109706 CVE-2026-109707 CVE-2026-109708
CVE-2026-109709 CVE-2026-109710 CVE-2026-109711 CVE-2026-109712
CVE-2026-109713 CVE-2026-109715 CVE-2026-109716 CVE-2026-109717
CVE-2026-109718 CVE-2026-109719 CVE-2026-109720 CVE-2026-109721
CVE-2026-109722 CVE-2026-109723 CVE-2026-109724 CVE-2026-109725
CVE-2026-109726 CVE-2026-109727 CVE-2026-109728 CVE-2026-109729
CVE-2026-109730 CVE-2026-109731 CVE-2026-109732 CVE-2026-109733
CVE-2026-109734 CVE-2026-109736 CVE-2026-109737 CVE-2026-109738
CVE-2026-109741 CVE-2026-109742 CVE-2026-109743 CVE-2026-109744
CVE-2026-109745 CVE-2026-109751 CVE-2026-109752 CVE-2026-109753
CVE-2026-109754 CVE-2026-109756 CVE-2026-109757 CVE-2026-109759
CVE-2026-109760 CVE-2026-109762 CVE-2026-109763 CVE-2026-109764
CVE-2026-109765 CVE-2026-109766 CVE-2026-109767 CVE-2026-109770
CVE-2026-109775 CVE-2026-109776 CVE-2026-109777 CVE-2026-109778
CVE-2026-109781 CVE-2026-110249 CVE-2026-113470 CVE-2026-113866
CVE-2026-113867 CVE-2026-113868
Multiple security issues were discovered in Thunderbird, which could
result in the execution of arbitrary code or information disclosure
Debian follows the Thunderbird upstream releases. Support for the 140.x
series has ended, so starting with this update we're now following the
153.x series.
For the stable distribution (trixie), these problems have been fixed in
version 1:153.5.1esr-1~deb13u1.
We recommend that you upgrade your thunderbird packages.
For the detailed security status of thunderbird please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/thunderbird
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
