MFSA2026-44: Security Vulnerabilities fixed in Thunderbird 140.10.2

Published May 8, 2026
·
Updated

Security Vulnerabilities fixed in Thunderbird 140.10.2

Affected Software

1 affected componentFixes available
Mozilla Thunderbird<140.10.2
140.10.2

Event History

May 8, 2026
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of MFSA2026-44?

The severity of MFSA2026-44 is classified as moderate due to potential risks associated with the identified vulnerabilities.

2

How do I fix MFSA2026-44?

To fix MFSA2026-44, upgrade your Thunderbird to version 140.10.2 or later.

3

What vulnerabilities are addressed in MFSA2026-44?

MFSA2026-44 addresses multiple security vulnerabilities that could potentially compromise user data and application security.

4

Is it safe to continue using versions prior to MFSA2026-44?

Using versions prior to MFSA2026-44 is not recommended due to unresolved vulnerabilities that may pose security risks.

5

Who is affected by MFSA2026-44?

Users of Thunderbird versions earlier than 140.10.2 are affected by MFSA2026-44 and should update immediately.

Contact

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