MFSA2026-50: Security Vulnerabilities fixed in Thunderbird 151
Published May 19, 2026
·Updated
Security Vulnerabilities fixed in Thunderbird 151
Affected Software
1 affected componentFixes available
Mozilla Thunderbird<151
151
Event History
May 19, 2026
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Child vulnerabilities
Contains the following vulnerabilities.
- 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
- CVE-2026-8972
- CVE-2026-8973
- CVE-2026-8974
- CVE-2026-8975
Frequently Asked Questions
1
What is the severity of MFSA2026-50?
The severity of MFSA2026-50 is rated as high with a score of 7.
2
How do I fix MFSA2026-50?
To fix MFSA2026-50, update your Mozilla Thunderbird to version 151 or later.
3
What types of vulnerabilities are addressed in MFSA2026-50?
MFSA2026-50 addresses multiple security vulnerabilities impacting the Mozilla Thunderbird software.
4
When was MFSA2026-50 published?
MFSA2026-50 was published on May 19, 2026.
5
What software is affected by MFSA2026-50?
The vulnerabilities fixed in MFSA2026-50 affect Mozilla Thunderbird.