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Vulnerability Intelligence
MFSA-2026-50
MFSA-2026-50
HIGH
8.9
Security Vulnerabilities fixed in Thunderbird 151
Published May 19, 2026
Modified 3 weeks ago
Fix available
Affected Packages
AlmaLinux 10
AlmaLinux 8
AlmaLinux 9
Alpine v3.15
Alpine v3.16
+237 more
Fixed in:
151
References
(153)
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1355639
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1362365
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1784128
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1860195
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1860538
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1883230
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1929005
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1940116
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1962625
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1965430
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1983353
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1983677
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=1998526
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2004804
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2021222
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2021727
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2022390
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2023116
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2023271
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2023657
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2023943
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2024244
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2024255
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2024260
REPORT
https://bugzilla.mozilla.org/show_bug.cgi?id=2024418
Show 128 more references
CVSS Analysis
CVSS v2.0
8.9
Related
(29)
CVE-2026-8946
CVE-2026-8947
CVE-2026-8948
CVE-2026-8949
CVE-2026-8950
CVE-2026-8952
CVE-2026-8953
CVE-2026-8954
CVE-2026-8955
CVE-2026-8956
CVE-2026-8957
CVE-2026-8958
CVE-2026-8959
CVE-2026-8960
CVE-2026-8961
CVE-2026-8962
CVE-2026-8963
CVE-2026-8964
CVE-2026-8965
CVE-2026-8966
CVE-2026-8967
CVE-2026-8968
CVE-2026-8969
CVE-2026-8970
CVE-2026-8971
Show 4 more
Ecosystems
(242)
AlmaLinux 10
AlmaLinux 8
AlmaLinux 9
Alpine v3.15
Alpine v3.16
+237 more
Timeline
Published
May 19, 2026
Modified
May 19, 2026
MFSA-2026-50 | Mondoo Vulnerability Intelligence