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Vulnerability IntelligenceMFSA-2026-28

MFSA-2026-28

HIGH8.9

Security Vulnerabilities fixed in Thunderbird 149.0.2

Published Apr 7, 2026

Modified 2 weeks ago

Fix available

Affected Packages

AlmaLinux 10AlmaLinux 8AlmaLinux 9Alpine v3.15Alpine v3.16

Fixed in:

149.0.2

References(42)

https://bugzilla.mozilla.org/show_bug.cgi?id=2017867

https://bugzilla.mozilla.org/show_bug.cgi?id=2021894

https://bugzilla.mozilla.org/show_bug.cgi?id=2022225

https://bugzilla.mozilla.org/show_bug.cgi?id=2022252

https://bugzilla.mozilla.org/show_bug.cgi?id=2022294

https://bugzilla.mozilla.org/show_bug.cgi?id=2022369

https://bugzilla.mozilla.org/show_bug.cgi?id=2022554

https://bugzilla.mozilla.org/show_bug.cgi?id=2023007

https://bugzilla.mozilla.org/show_bug.cgi?id=2023026

https://bugzilla.mozilla.org/show_bug.cgi?id=2023130

https://bugzilla.mozilla.org/show_bug.cgi?id=2023191

https://bugzilla.mozilla.org/show_bug.cgi?id=2023364

https://bugzilla.mozilla.org/show_bug.cgi?id=2023545

https://bugzilla.mozilla.org/show_bug.cgi?id=2023555

https://bugzilla.mozilla.org/show_bug.cgi?id=2023829

https://bugzilla.mozilla.org/show_bug.cgi?id=2023958

https://bugzilla.mozilla.org/show_bug.cgi?id=2024074

https://bugzilla.mozilla.org/show_bug.cgi?id=2024417

https://bugzilla.mozilla.org/show_bug.cgi?id=2024433

https://bugzilla.mozilla.org/show_bug.cgi?id=2024436

https://bugzilla.mozilla.org/show_bug.cgi?id=2024437

https://bugzilla.mozilla.org/show_bug.cgi?id=2024453

https://bugzilla.mozilla.org/show_bug.cgi?id=2024461

https://bugzilla.mozilla.org/show_bug.cgi?id=2024462

https://bugzilla.mozilla.org/show_bug.cgi?id=2024472

CVSS Analysis

CVSS v2.0

8.9

Related

CVE-2026-5731 CVE-2026-5732 CVE-2026-5733 CVE-2026-5734 CVE-2026-5735

Ecosystems(239)

AlmaLinux 10 AlmaLinux 8 AlmaLinux 9 Alpine v3.15 Alpine v3.16

Timeline

PublishedApr 7, 2026

ModifiedApr 7, 2026

MFSA-2026-28 | Mondoo Vulnerability Intelligence