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Debian DSA-6152-1 Thunderbird Important Info Disclosure Code Execution

debian
Calendar Grey February 28, 2026
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Multiple issues in Thunderbird could lead to arbitrary code execution or information leaks. Upgrade recommended.
Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code or information disclosure
Topics%20covered

Topics Covered

security advisory debian arbitrary code execution important information disclosure thunderbird

Summary

For the oldstable distribution (bookworm), these problems have been fixed
in version 1:140.8.0esr-1~deb12u1.

For the stable distribution (trixie), these problems have been fixed in
version 1:140.8.0esr-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/source-package/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/



Severity
important
Lowest
Low
Medium
High
Critical

Package: thunderbird
CVE ID: CVE-2026-2757 CVE-2026-2758 CVE-2026-2759 CVE-2026-2761

Topics%20covered

Topics Covered

security advisory debian arbitrary code execution important information disclosure thunderbird

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