MFSA2026-33: Security Vulnerabilities fixed in Thunderbird 150
Published Apr 21, 2026
·Updated
Security Vulnerabilities fixed in Thunderbird 150
Affected Software
1 affected componentFixes available
Mozilla Thunderbird<150
150
Event History
Apr 21, 2026
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Child vulnerabilities
Contains the following vulnerabilities.
- CVE-2026-6746
- CVE-2026-6747
- CVE-2026-6748
- CVE-2026-6749
- CVE-2026-6750
- CVE-2026-6751
- CVE-2026-6752
- CVE-2026-6753
- CVE-2026-6754
- CVE-2026-6755
- CVE-2026-6757
- CVE-2026-6758
- CVE-2026-6759
- CVE-2026-6760
- CVE-2026-6761
- CVE-2026-6762
- CVE-2026-6763
- CVE-2026-6764
- CVE-2026-6765
- CVE-2026-6766
- CVE-2026-6767
- CVE-2026-6768
- CVE-2026-6769
- CVE-2026-6770
- CVE-2026-6771
- CVE-2026-6772
- CVE-2026-6773
- CVE-2026-6774
- CVE-2026-6775
- CVE-2026-6776
- CVE-2026-6777
- CVE-2026-6778
- CVE-2026-6779
- CVE-2026-6780
- CVE-2026-6781
- CVE-2026-6782
- CVE-2026-6783
- CVE-2026-7321
- CVE-2026-8091
- CVE-2026-6784
- CVE-2026-6785
- CVE-2026-6786
Frequently Asked Questions
1
What is the severity of MFSA2026-33?
The severity of MFSA2026-33 varies depending on the specific vulnerabilities addressed, but it generally contains important security fixes.
2
How do I fix MFSA2026-33?
To fix MFSA2026-33, users should update their Mozilla Thunderbird to version 150 or later.
3
What vulnerabilities are addressed in MFSA2026-33?
MFSA2026-33 addresses multiple security vulnerabilities found in versions of Mozilla Thunderbird prior to 150.
4
Who is affected by MFSA2026-33?
Users of Mozilla Thunderbird versions up to but not including 150 are affected by MFSA2026-33.
5
Is there a workaround for MFSA2026-33?
There are no specific workarounds for MFSA2026-33; updating to the latest version is recommended.