[SECURITY] [DLA 4636-1] thunderbird security update
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Debian LTS Advisory DLA-4636-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
June 19, 2026 https://wiki.debian.org/LTS
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Package : thunderbird
Version : 1:140.12.0esr-1~deb11u1 1:140.12.0esr-1~deb12u1
CVE ID : CVE-2026-12289 CVE-2026-12290 CVE-2026-12291 CVE-2026-12292
CVE-2026-12294 CVE-2026-12295 CVE-2026-12296 CVE-2026-12297
CVE-2026-12298 CVE-2026-12299 CVE-2026-12302 CVE-2026-12304
CVE-2026-12305 CVE-2026-12306 CVE-2026-12307 CVE-2026-12308
CVE-2026-12309 CVE-2026-12310 CVE-2026-12311 CVE-2026-12312
CVE-2026-12313 CVE-2026-12314 CVE-2026-12315 CVE-2026-12324
CVE-2026-12325 CVE-2026-12327 CVE-2026-12328 CVE-2026-12329
CVE-2026-12330
Multiple security issues were discovered in Thunderbird, which could
result in the execution of arbitrary code.
For Debian 11 bullseye, these problems have been fixed in version
1:140.12.0esr-1~deb11u1.
For Debian 12 bookworm, these problems have been fixed in version
1:140.12.0esr-1~deb12u1.
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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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