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Debian LTS Advisory DLA-4594-1 [email protected]
https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
May 22, 2026 https://wiki.debian.org/LTS
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Package : thunderbird
Version : 1:140.11.0esr-1~deb11u1
CVE ID : CVE-2026-8388 CVE-2026-8391 CVE-2026-8401 CVE-2026-8946
CVE-2026-8947 CVE-2026-8950 CVE-2026-8953 CVE-2026-8954
CVE-2026-8955 CVE-2026-8956 CVE-2026-8957 CVE-2026-8958
CVE-2026-8961 CVE-2026-8962 CVE-2026-8968 CVE-2026-8970
CVE-2026-8974 CVE-2026-8975
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
1:140.11.0esr-1~deb11u1.
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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