PT-2026-5077
CVE-2026-0818
·
Published
2026-01-01
·
Updated
2026-03-18
Description by
CVSS 2.0
5.0
MediumMetricsAV:N/AC:L/Au:N/C:P/I:N/A:N
Name of the Vulnerable Software and Affected Versions
Thunderbird versions prior to 147.0.1
Thunderbird versions prior to 140.7.1
Description
A flaw exists that could allow for CSS-based exfiltration of content from partially encrypted emails when remote content is permitted. This could potentially compromise the confidentiality of email communications.
Recommendations
Update Thunderbird to version 147.0.1 or later.
Update Thunderbird to version 140.7.1 or later.
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